Yeah it would be better to wait unitil you can release a version which has some significant improvements and in the meantime you can concentrate on other projects.

R-type works fine on pc mame 0138 and also works fine on mame4all 2.5 on the gp2x wiz (although this version is based on mame 0.37b5).

How big a job would it be for you to port a command line mame4all from the WIZ or pandora versions so i/we can compare performance against the current N900 version, mainly on the sluggish roms which should run ok?

link to souce code for WIZ version hope this helps

http://www.talfi.net/gp32_franxis/