If u like your phone to be:
Rooted - 200
Rooted, install rootExplorer - 300
Rooted and install rootExplorer and Xrecovery- 400
Rooted, install Xrecovery and install custom Rom FroyoBread (upgrade version 2.1 to version 2.2.9) - 500
Requirements:
Baseband version must be M76XX-TSNCJOLYM-53404015
Kernel must be 2.6.29
update:
2.3.5 is now available...
I installed it to my phone so far its good...