Tuvalu

Basics
Tuvalu is a country in a middle of nowhere :-)

Only one operator is Tuvalu Telecom.

Tuvalu Telecom (TTC)
You can buy sim card in main office of Tuvalu Telecom near the police station, it's just 20 meters from airport.

Sim card cost AUD 10.00 with 5.00 credit on it.

There is no data bundles or packages, only one price AUD 0.10 per MB.

3G is available all over the island, but internet speed is like on Edge, very slow, good only for emails and IM.

To check balance dial *767# or dial 767 and you will get sms.
 * APN: ttc (user: ttc, password: ttc)

Wi-Fi
If you want faster internet, you can buy wifi voucher in Tuvalu Telecom:

AUD 5.00 for 100 MB

AUD 10.00 for 250 MB

AUD 20.00 for 600 MB

Telecom WIFI is available in many places all of the island, e.g in Funafuti Lagoon Hotel.