I was using a Nokia 3650 before and I just got my N80.
I knew before I got my N80 that almost none of my 3650 symbian apps would run in my new N80 but, I thought that JAVA (Platform free, blah blah, blah) would do the trick till I got the new symbian software...
Well, I put a couple of games in my phone and everything is extremly tiny, kinda a Picture-in-Picture of a regular TV.
I know that my N80 has a better screen, more resolution, etc. but is there any way (even with bigger pixels) to play full screen my java games?

Na just have to wait for some games to be released for the n80 im afraid.

It depends on how the Java app is written. The older ones dont often have the necessary code to do different screen resolutions where as the newer ones do.