Without knowing any specifics on why it's needed, I hope
the final release will get rid of that requirement (if
possible).
Since we always are pushing people to use admin as
little as possible, it doesn't "fit" to now go and tell
you *have* to run as admin or it doesn't work ;)
Actually with Team Suite installed the installer
launches several update processes and I had to
completely disable UAC in order to get it to install
properly, due to permission errors copying files.