On the shadows, or the free mobile exporters? I'm pretty sure directional light shadows were added for the Basic (free) versions of Unity. I'm not sure that it is the full-on lighting model though, I'm pretty certain it is just enabling the previous version of basic shadows to work with directional lights. As to the free…
http://www.pocketgamer.biz/r/PG.Biz/Unity+news/news.asp?c=51030 Exciting news for those of us that are into making apps Also we might be able to see more portfolio type apps.