FYI guys, I have a programmer friend between gigs and he's agreed to try doing an Ars-style die roller app for Android. For those who need to know, preliminarily he's decided to keep it backward compatible to droid v1.5.
In the past, looking at die rolling apps there is always this problem in that I've yet to find one that includes a macro that can capture the algorithms for botches and ars-style explosions.
Anyway, I've got a guy on this and will keep you posted.