I don't have four weeks of summer holidays, just two. Skipped the last week, but not sure where the 4th week is from. Probably got the week numbers wrong earlier. Anyway.. 
 
Played games: 
Golden Sun: The Lost Age - GBA 
Had my GBA with me on my holidays and wanted (re)start and finish Golden Sun 2. This game is massive. The first one was already long and complex but this is even bigger in every sense. Really loving the puzzles. Got about 20h in now. Got  the trident forged and should be heading to Lemuria next.
Aquaria - PC  
Had my netbook with me as well and wanted to start with one game from the Indie Bundle while ago. Got only couple of hours of game time so can't really say much about this. Will get back to this once I am done with GS2. 
 
Pro Evolution Soccer 8 - Xbox 360 
This was also during my holidays. Visited a childhood friend and it turned out that he had a Xbox as well. So got some good matches against him. He still has a SD TV and for a current gen footie game it looked horrid.  So spoiled with the HD  :) 

Bionic Commando Rearmed - XBLA
After holidays I finished this and wrote a review about the game here. Pretty decent XBLA game. 
 
Game Room - H.E.R.O - Xbox 360 
My third Game Room game. Remember playing this on C64 so had to get this. Wrote a review of this as well. Really challenging to review such a old game but I decided that I will review all the games I am playing so sticking to it. Still need to review Red Baron 
 
Monkey Island 2 - XBLA 
Being a big Lucasarts fan  there was no doubt about getting this game. Still as awesome it was in 1991. Managed to finish this already, but had already forgotten too many puzzles. So will go back to it and try to do a speedrun with no hints. And maybe a review if I can praise it enough. Although I always preferred the 1st over this. 
 
New purchases: 
H.E.R.O - Game Room 
Monkey Island 2 - XBLA 
 
Infinite Undiscovery -  Xbox 360 
Another JRPG that I was missing, got it for only couple of quids 
 
Demon's Soul Black Phantom Edition - PS3 
This was finally brought to EU. Got my copy on release date but haven't started with this yet. Have played friends imported copy few months ago already though.