Hi,
for free? I don't think so! 
But I will ask tomorrow. At least they have more MHz!
I checked http://www.sparkfun.com and would like to ask for a good combination of an Arduino mega 2560, gps module (that can also provide gps-time to the arduino) and a communication link that uses 2.4ghz and has it's own antenna AND where I can plug in an external antenna, perhaps yagi. and it would be great to have it ready so that I don't have to build and solder them on my own.
greets,
Andreas