Have to admit to being a tad disappointed with this phone even with the new update its still laggy around the home screen doesn't switch smooth, the web browser is laggy i wouldn't even put it above the Hero.
The web browser in general is faster just laggy moving around the screen, was i expecting to much ? i mean even the 2g iphone leaves it for dead still in this department imo.
Edit:
Been testing both phones and every web page i been on is smoother on the Hero than on this phone now something isn't right there for sure, for example went on the mobileburn.com and its super smooth scrolling on the hero but laggy as hell on the Milestone this is with a full factory reset also.
Edit
Looking around it does appear users are having this issue since the update, lots of people on there complaining might just send this back and wait for the Nexus.
http://androidforums.com/support-troubleshooting/25196-browser-very-laggy-after-2-0-1-update.html