Hiya - i haven't been on here for a while (too much time in World of Warcraft) but Gigas is far from dead. its not really a platform specific project so even if the GP32 community suddenly died, i'd still work on the project and port it over to some other formats.
I have a PSP and a DS, the DS is ok but unless developers can make good use of the touch-screen your just going to end up with some ugly looking 3D games, the PSP really impressed me - but i find 90% of the time im using it to watch anime i've converted into MPEG4, the games out on it at the moment are far to 'arcade' style and lack any real depth to hold interest.
the GP32 wont die however, as neither of the above cater for the home-coder - the GP32 (and to a lesser extent the Zodiac) are the only handhelds still which allow anybody to create software, and until the hackers/crackers find a way of getting homebrew to run on the PSP (easily, i know they've already done it using custom cables and the like) i think the GP32 scene will be fine.
I used to think of the GP32 as a power-horse when it came to 2D, but a couple of my projects (Guardian Monsters and another secret one) reached the stage where it was pushing the GP32 too far with sprite numbers that it ruled out some of fundimental gameplay mechanics so both those projects will probably re-appear on other formats (or maybe once i learn to code half decently, they'll make a GP32 appearence - lol).
Gigas runs great on the GP32, and thats with all the features chucked in - and cos the SDK is easy and it only takes a few seconds to test stuff on the hardware i have no interest in changing the primary format.
To be honest, i doubt anybody will ever make a game using Gigas on the GP32 - but then again i didnt code it for other people, i coded it as i love RPGs and like using the editor to tinker with ideas for RPG's while im travelling about.
I release it because, well, even if one other person enjoys it it makes the website and hassle of building a release beta version worth it. plus i've had a few donations which in return has allowed me to buy a chatboard and an RF adaptor.