Why bother upgrading? 2 simple reasons: USB and wifi tethering.

Instructions courtesy of my friend Jack:

Step 1) Do a complete backup of your SD card data (just in case)

Step 2) Root your phone
– Go to http://forum.xda-developers.com/showthread.php?t=742228 and follow the instructions

Step 3) Do a Nand backup
– Make sure you have >=500Mb free on your SD card
– With phone off, hold Power + Volume Up to boot into recovery
– Choose the Nand backup option
– Copy the nandroid folder from your SD card to your computer

Step 4) Load the ROM of your choice
– Download a ROM (I recommend http://forum.xda-developers.com/showthread.php?t=745603)
– Follow directions from the ROM page, which generally will include
– Put the ROM in the root dir of your SD card
– Reboot phone into recovery mode (like in step 3)
– Wipe data / factory reset, and wipe Dalvik-cache
– Flash zip from SD card
– Wait for a long time

If you're having difficulty getting to the recovery console like me, try Volume Down + Power instead.

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