Yes the hand is inside the iPad. With proper training and diet it is possible to fit the FL Studio Guru INSIDE an iPad.
FL STUDIO MOBILE FAQ
What about Android OS? 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 :)
Does this mean FL Studio on Mac OSX soon? FL Studio Mobile is not a port of the Windows version of FL Studio. It is the product of a completely separate development team, and code, so FL Studio Mobile, while compatible with FL Studio has no impact on FL Studio development and vice versa.
Can I use VSTs? No, iOS does not support VSTs and frankly the devices it runs on don't have the CPU power to perform the synthesis you are used to on a desktop. FL Studio Mobile uses high quality sample based instruments made from Image-Line plugins and sample packs.