Sprint Nextel subsidiary Boost Mobile is now offering a $1-a-day pay as you go plan called the Chat Plan. The company is also lowering the price of its premium 600 minute offer to $60, down from $70 a month. The new Chat Plan offers unlimited nights and mobile-to-mobile calling. The plan also offers a 10 cent a minute daytime rate and the option to pay an additional $1 a day for Boost's Walkie-Talkie service.

For more on Boost's new plans:
- read this press release