His Flash 10 works similar to how the Flash 9.4 worked on the N900 before websites started "requiring" Flash 10 (or whatever works with Tweak Flash). Not sure how his performs on Flash 10 specific content/features compared to the N900's non-function on Flash 10 specific content/features since we didn't try any. Last thing he showed me was watching Hulu via Skyfire. I think that's how he views most heavy flash based content nowadays.