I had a Galaxy S 1 and the lag was horrible. HORRIBLE! I resorted to rooting and using a custom firmware (Darky's ROM, which was like getting a new phone). With

I had a Galaxy S 1 and the lag was horrible. HORRIBLE! I resorted to rooting and using a custom firmware (Darky's ROM, which was like getting a new phone). With my S2, the lag is no where to be seen. I've had it for almost 2 months now, and I love it! Everything just works, and as a result I haven't even considered rooting it. Samsung has historically had great hardware products, and crappy software products. But at least with the SGS 2 they seem to have gotten it right. Time will tell if they are more responsive about Android releases, but to be honest I'm not that worried because it works so well out of the box.