Thanks for your comments and overall critism. Sorry for my late reply, but its Xmas time anyway
Some answers:
1) No i didn't tried PSP homebrew. Unfortunaly i had to return PSP, since i had borrowed it. But i plan to buy a PSP anyway and revise review
2) Batteries. I haven't tested autonomy with 2700rechargable batteries. I believe your comments about ~4/5 hours so i will revise the review with this comment. Of course this adds extra cost to the GP2X, whereas PSP has battery in package
3) PSP vs GP2X screen. It may be my eyes, but i found PSP screen bigger and with much better colour reproduction. Also it has wider viewing angles, feature needed to view movies. I am not saying that GP2X has a bad screen but its viewing angles are very limited...
4) PSP vs GP2X comparison. Of course this cannot be 100% accurate since something i like, you don't and via versa. As has been stated in the review, both portable platforms have different "audience", the first is a closed system with commercial games you have to pay much money, whereas GP2X is open, everyone can build its own games and download many for free. I believe this has been clearly stated in review.
5) Games and emulators... Due to testing period i couldn't possible test all emulators. Thats why we linked another review which has tested almost all system emulators, users can get a second opinion. We used MAME since its the most well known emulator platform. Hopefully I will test more NeoGeo games with gngeo emulator
6) "...I also wish reviewers would include retrovirus RTS in their list of commercial games...", strange didn't saw this game listed as commercial anywhere i looked, will add it at the list too...