In case you hadn't gathered from the RMR news piece, NS Basic has now been formally released for Symbian. It's a Visual Basic-like development environment which "makes it easy to create apps for S60 3rd Edition and UIQ3 devices". The full press release is here. Comments welcome if you give this a try.
I suppose this isn't really that kind of BASIC any more though, but I think a lot of people here (esp. those over 25) still have memories of the good old days.