ha I'm pretty sure he's referring to the firmware update rumor on cinema5d, not the aperture control workaround that someone else posted. I didn't even realize the t1i didn't have manual aperture control, which must be annoying. The pentax has full manual aperture control built in.
Yes, I was referring to the rumor posted. I had the T1i for three months before I got the K-x. Never looked back. Ease of use, slightly better build quality, crappy LCD haha. That's how I would sum it up. Sensor is killer though.