ZAPBoston

1) To retrieve the marker. When she was sent, the government had probably hoped the team would arrive at Ishimura before all hell broke lose. If they known an outbreak had already occurred, i speculate they would have sent Valor in for an immediate attack and not even go through the facade of sending a repair team with an embedded agent on-board.
2) I think the second marker was manufactured to trap the necromorphs on the planet. I am confused though on how a man-made replica of the marker can still have the same psychic effect on humans as the original marker. The government must have backward engineered how the original marker worked completely to build a marker copy that worked as well. Plus the marker appears sentient which makes it even more weird that its a man-made copy. 
3) I think the original marker is still in the hands of the goverment being studied. 
4) The Marker was behind Isaac's hallucinations. 
5)  A group that believes the necromorphs are the next stage of human evolution are extrememly dangerous  despite their pure intentions. I didn't see any records or audio tapes that mentioned if the church leadership are true-believers or cynically pulling strings for a different purpose. 
6) Dude was just doing his job. Although if I were him, I wouldn't have left Isaac's side. Engage necromorphs Army of Two style. 
7) Like everyone else, I heard that Isaac isn't dead. I agree with the_A_drain on why the ending is in there. It was probably just an hallucination brought on by stress and guilt since I thought the necromorphs were all inactive now that the marker had been returned to the planet - and the hive mind getting slammed by the planet core. 
 
I'm not sure how you implement a co-op or squad mode and keep the same atmosphere to the game. I think the dead space universe is rich enough to allow for an awesome franchise though. Since the Ishimura was as much a character as Isaac and Kendra, the sequel would need a compelling environment as well. I like super_machine's idea of a mausoleum ship. 

force cannon - fully upgraded. Found it useful in every fight.
plasma cutter for longer ranged combat.

The_A-Drain makes sense with his explanation of the second ending.
 
I think I heard a sequel had been approved. That's awesome. 
 
At first, I thought Nicole was real and there was a chance for Isaac to rescue her but by mid-game I had a strong feeling she was gone. Very sad.

Dead Space was awesome - in addition to the game mechanics it had an entertaining story. 
 
<Spoilers>
 
1) The red marker, the man made one, remained on the planet when the planet core reentered the atmosphere and impacted with the planet. Presumably, the marker was destroyed. This marker was only a copy so the original might be somewhere else of there might be more copies being experimented on by the Church or the Government. 
2) Good question. I don't know. I'm leaning toward it being part of her act. Since she knew about the marker and she knew Isaac's visions of Nicole were psychic projections from the marker, I don't think she would have been surprised if she did see her dead brother. She would have been self-aware of the marker's impact on herself. So whether seeing her dead brother happened or didn't, Kendra telling Isaac was probably part of her way to keep his confidence. 
3) I think so
4) That was a slight plot hole because you are right, it was a little weird. The military ship's mission seem to be surveillance until the marker was discovered and then to destroy the Ishimura. So, you have a military ship with trained, armed soldiers - black ops guys - knowing they were going to engage with a ship which had brought up the marker and they just open the escape pod. Plus they get overwhelmed by one creature?  I mean I saw Alien. One creature could take an entire crew down. Yet it did it so fast. I guess the soldiers weren't as bad ass as Isaac. 
 
I'm glad Isaac survived too. I was worried toward the end, given the dark nature of the game, that he might die. Sad about Nicole.

Great videos, guys. Looking forward to downloading the app.

I really enjoyed the Dawn of War 2 soundtrack while I was completing the single-player campaign. It's a great game with a soundtrack that lives up to the visuals and gameplay mechanics. I know I've seen some of the soundtrack floating around various forums but I haven't seen it available to download from Relic yet via their website, Amazon MP3 store, or iTunes...until today!!

I think music in gaming has come along way in the last few years. There are some really good game soundtracks out there (even for some games that were not really good overall experiences)

Some of my all time favorites are:

• Alone in the Dark - Killing the Fissure - Olivier Deriviere & the Voices of Bulgaria choir 
• Universe at War - Divine Inspiration - Frank Klepack
• Eternal Darkness - The Sign - Steve Henflin

The new Batman: Arkham Asylum game looks very promising. Although there were no definitive information on Game Informer about the voice credits for the game - I hope Kevin Conroy reprises his role as Batman. I have been ecstatic about Nolan's reboot of the Batman franchise and Bale's performance as Batman but I think Conroy is "the batman voice".

Maybe it's a generational thing. I know many people my age grew up with Paul Dini and Bruce Timm's brilliant reboot of practically the whole DC universe and have very fond memories of Batman the Animated Adventures (which I think is superior to the new Batman series).

I know Game Informer mentioned that Dini was attached to this latest Arkham Asylum game - so hopefully that is a good sign about the quality of the overall game.