I was poking around the interwebs and came across BeCasso for iOS. Is this related to the long time BeOS/Haiku application? It is of the same paint/art genre. It seems to be new and in testing phase. Available in the app store.
I also noticed that app a few weeks ago, but I have no idea if it is somehow related to the old BeOS app.
It does not seem to.
Original BeCasso page is still online: http://www.stoks.nl/sumware/about/index.html
Different country, different names. So I find it unlikely to be a connection.