Build car-pools with GPS

As the weather turns into rain me and my bike will have a hard time... As I don't have a car it's time to think about rain-alternatives. Advantage of the bike compared to the bus is, that it's riding when I want, in heavy traffic like at the mornings on the way to CIT it's faster, punctually and it's for free.
But what about longer tracks, 10, 20, 50km? Bus and Train seem to be a good alternative, but they are expensive. That's why in Germany there is a community called "Drive-with-me" (www.mitfahrzentrale.de), a domain which organizes car pools to get cheap from city A to B. But get a ride needs a lot of organization, people come late, the car is already full, you have to decide 3days earlier where to go, etc...

Some students from Darmstadt developed now the plattform flinc.org, which uses smartphones and GPS data to find the perfect ride. The system is much more flexible and can reduce the number of cars.

As I used car pools in Germany I think it's really a good alternative for both, driver and passenger. If enough people are registered you can decide very shortterm, if you want to pick up people or if you prefer to ride alone. And as passenger you can plan shortterm-trips without planing 3 days before.