T-Mobile's Pay By The Day Prepaid Option

T-Mobile USA came up with a new prepaid calling option - Pay By The Day.

Each day you use the phone will cost you $1. This includes free calls inside the network, and unlimited calls to any operator between 7:00 PM and 6:59 AM. Calling other operators during daytime hours costs $0.10 per minute.

Prices for SMS messages are $0.10 to send, and $0.05 to receive.