Just occured to me that people on this forum might have an interest in Kosmodrones, a PSP homebrew game I've been working on for about 6 months now together with some friends of mine. It is heavily based on Turbo Raketti, and I've been playing that a lot while making this to make sure Kosmodrones will have the same kind of feel to it.
Kosmodrones will feature 2-player adhoc deathmatch, race mode and online ranking system. I'd say the coding is 95% done. Just a profile handler that is missing and logging of the match data. But the level designs and audio are still being worked on, so I'm guessing a release in a month or so is likely.
Screenshots:
This level don't have normal gravity. Instead everything gets sucked towards the white dwarf at the center of the level.
A cold winter level with the other spaceship model.
This is the alien fraction's home world. The level changes between day and night all the time here, so when it is dark, you'll need to use the lights mounted on the ships to see where you are going...