1) Evidently this will be a limitation on the RAM in the unit - I don't know what size it is but I'm guessing if this isn't already implemented then its not possible - I will certainly suggest it.
2) remotebox is in constantly development - waveforms have been requested with some time so hopefully we will see it soon.
3) Android support has been requested with some time however I don't believe there are any current plans to support it. Hopefully, in the advent of 4.1, we might see the introduction of Android support.
4) I'll ask!
Thanks for your suggestions!