Your best bet may be to go to
Pocketgear and do a search for "arkanoid" or "breakout" and start downloading trials.
Personally, the only arkanoid-type game that I've tried and purchased is
Ricochet from Astraware because I'm such a huge fan of their stuff. It's got a ton of power-ups; it's very fast-paced and quite fun. You may want to check out the trial.