Stage 9 might need another size reduction. This time I'd cut some off the top, another 240 pixels. I'm pretty sure there'd still be enough maneuver room.
I started diving into Unity on Sunday. I think it'll work out just fine. I'll continue doing their tutorials to further enhance my memory of it's ins and outs for maximum awesome. MAXIMUM AWESOME! They announced the next version too, Playstation 3 developing and other things, I think they have all the consoles covered now, nifty.