A nice Flash piano-roll called Visual Composer… (Select from right menu)
What a piece of crap! 
…well for a flash thingy I guess it was pretty cute. 
It’s a sneak preview of the Renoise piano roll. 
Guah, that was horrid… Cute yeah, but it lacks a STOP-button!
thats actually very very interesting!
thankyou vvoois!
its interesting mainly becuase flash can send midi info through the OSC protocol, and since most browsers can run flash this means alot!
this is an exceptional idea!
Why you gonna make an online pianoroll sequencer and then put around a membership system for $2,95 a month?
If a thousand people would join, you would have a steady nifty income with this.