I am going to buy the MGS:Peace Walker PSP when it comes out, and was just wondering, for those who have it, how often do  you use it?  

Obviously I will play MGS:PW, but I'm not sure what else I would use it for. I'll probably get Portable Ops after I finisher PW, but  I'm not sure what other games I would get for it.  
I know it has a lot of uses, and I'm sure I'll try most of them out, but was just curious, who uses it on a daily, weekly basis?