nice review and nice images.
Mine arrived yesterday, going to use it in anger today at lunch. Very impressed with form so far, images look good on LCD, will see how they fare on VDU.
I've found the AF on the 22 as expected, not the fastest ever, but in one shot single zone af (with touch on and off) to be pretty fast. I guess for street stuff I would probably use AF-MF with continuous AF off (so it behaves like a one shot lock idea) pre-compose shot, lock focus and wait for decisive moment.
I really am very impressed. My 430EX is working ok on it, as are my thrid party lenses, my 100mm 2.0 USM is very fast to focus on it, my sigma macro very slow, but very accurate.