Flash is owned AND controlled by Adobe...that is why Jobs is so pissed...In Apple's secretive world it's a reality that Jobs can't handle...(Apple does and wants to own and control the primary technologies behind every product they make.)
Also Flash is 32 bit and Jobs wants everything 64 bit...
Add to that, is the fact that Flash is by anyone's opinion the default standard for video playback (amongst other things) on the internet.
But guess what program crashes things the most on the Mac OS...ding ding ding hold all cards we have a winner...FLASH
I'm sure WGT wished they could do more with Flash programming but it's not "open sourced".
It's all about the "P's"
Profits-Politics-Programmability