Steps to activate unlimited surfing from Sun:
1. Go to Settings > General > Network.
2. Switch on the Enable 3G and Cellular Data.
3. Go to Cellular Data Network.
4. Enter APN: minternet
5. Leave blank for username and password.

To register:
type i25 to 247 – P25 for 3 hrs.
i50 to 247 – P50 for 1 day.
i100 to 247 – P100 for 3 days.
i250 to 247 – P250 for 7 days.
i999 to 247 – P999 for 30 days.

PHPlurk announced a new gateway number for Sun subscribers.

No need to register again if you’ve already registered before. Just send your plurk timeline to this new number.

For first timers, you can check my post about phplurk.