Looks like PSP and NDS homebrew masters need to make some space for Xbox 360 homebrew developers. Since the very recent release of XNA beta, we've already got our hands on a couple of them. The first one was FX14 XNA by ARogan (BACKLINK TO FOLLOW)

And now here comes Xbox 360 homebrew application no.2: Simply Explosion Maker (SEM) by East-Power Soft.

The Simply Explosion Maker (SEM) is a simple program creates graphical explosions for 2D games. It is not a program to create absolute realistic particle emissions, says the developer, but it could be the only program of its kind yet. If you play FX14 XNA, the explosions in that game were done by SEM.

SEM is a will come in handy for homebrew game developers making their first shooting games looking for a quick, simple and clean resolution explosion graphics.