It's on the roadmap, stop nagging! We have a development team working on a low-latency Android audio-engine and there are many screen resolutions and device specifications to consider, it's not as simple as you may think :)

The screenshot below shows that FL Studio Mobile Android development has started, however, please do NOT expect a release version in the near future. We still have a long way to go.

Status:

June 2011:
First device cpu tests for sound processing speed

Checking out the different options to continue

Update - October 2011:
FL Studio Android development had progressed considerably.

Screen resolution issues have been dealt with.
Work is continuing on the low-latency audio engine.