I can "feel" the lag in the android experience and it's the same lag that I get from desktop apps written in java. It's not just FUD. Almost always when there's a memory-bloated application it's written in java. Hell, adk won't even run unless you increase the -Xmms setting to 4+ gb.
People rightfully pointed out that tablets are plenty powerful to do DSP type applications, but something is consuming all the resources. I'm just saying what that something is.