Just a quick add. Tethering also works aswell.
With a fresh install of Windows 7 it seems easy for the operating system to instantly find and download the needed drivers (loaded 7 in another laptop) it even displayed a new type of device window which I found nice but limited like the regular sync center. The HTC Modem Driver installation from my disk however didnt seem to fair well though I didnt need it after it found its own drivers. I got the error "This application is for WinXP, Vista(32), Vista(64) only" Which I found interesting since it seems the drivers are still the same.
Also I get a wierd error when trying to use my CD to install WMDC. It appears that with the upgrade the flash needed no longer recognized it even though it flash was installed and working (even with a reinstall) it showed that it needed adobe 8 or higher so be prepared with a connection to the net if you plan on a install/reinstall.
Since Windows 7 is still beta this may just be my copy or my experience with my equipment. Ive been sending feedback to MS like crazy to make this thing worth money.
hopefully it will be better as I really do like the OS better than Vista (though its seems more of a cool Vista SP then an ACTUAL upgrade as of yet but we will see.)
Hopes this Helps with some questions.