My Nexus One got the Android 2.2 update recently, so I installed the Flash player and tried Skritter out. The page does come up, but you can't draw on the writing area as it just drags the whole page around. The "settings" button also pops up the settings dialog behind the writing area, so you can't see half of the dialog.
I did try out http://8.latest.skrit.appspot.com/demo as suggested in this previous thread
http://www.skritter.com/forum/topic?id=36275537
but it has similar problems; the dialogs appear underneath the writing area, and drawing on the writing area simply drags the whole thing left and right.
Feel free to email me directly...
James