rooting your phone is worth it for this.. so worth it.
first off, you can tether your phone, (streaming internet as a wi-fi connection so you can recieve internet on your laptop)
its fast, fast enough to play World of Warcraft or stream movies no problem.
Proof: and this is at a high volume time of night. during the day or really late at night i get almost 2MB download and 500KBps upload.
And the cupcake update itself is more than a reason to root. trust me. and there are easy to follow guides on the XDA developers forum.