Just to correct a small misconception. Flash is technically not built-in to the browser. FroYo provides some extra hooks for it, but actual device-specific porting and certification is required, plus you need adequate distribution licenses from Adobe. The bottom line - Flash is not part of FroYo's browser but is supported by it. Why this nitpick ? Because it affects the support cycle - it's not Google's job to maintain Flash, so it will be interesting to see the future of Flash after FroYo.