JetBlue, the coolest discount airline that I’ve ever flown on, has partnered with Research in Motion and Yahoo to bring you in-flight access to email and instant messaging while in flight.

BetaBlue, which will make its inaugural flight next Tuesday from JFK to San Francisco, will allow passengers who bring their laptops to access lightweight versions of Yahoo email and instant messaging services, however, Wi-Fi enabled BlackBerry users (8820 and 8320) and will be able to access their corporate (BES) and personal (BIS) email via their handhelds.

There is no way to request the first Wi-Fi enabled plane, however, there will be no charge to use the service if you happen to get lucky.