Do you have Flash on your phone? How is the performance? How does it affect your battery life? What is it like on Flash only websites? Do they load faster, slower or in equal speed to an equivalent non-Flash website (based on your best estimate). If you cannot answer, can you point me to a place that could?
Yes, I could see the option as a benefit, but 99% of the time, heck, 99.99999999999% of the time, I don't want it on my phone.
My concern is thus. I was playing a Flash game last night (I love 'em) on the desktop in my sig in OS X. 150% CPU usage (for those that don't know OS X, each core gets 100% total, so fully loaded CPU is 200% for me), one core was at 90%+ the other at 60% or so. This is with 10.1 with GPU acceleration (though that might just be h264 video). First of all, the vast, VAST majority of Flash games are designed for mouse/keyboard and secondly, iOS is based on OS X, which has horrifically bad Flash performance.