Whether this solution compares to FLARM technology or not - I think overall it's a very innovative idea that has a lot of potential in it. As Ben mentioned, a ground base station can broadcast information from the ground, gliders can share the location and strength of thermals among themselves, all at the cost of a $100 gadget. I cannot say that I have ever had the chance to fully exploit what PowerFLARM gives, but knowing that others are in the air nearby is already a great safety feature, especially given that the cost of this gadget is a fraction of the cost of a new PowerFLARM portable. Though credit goes to Flarm for collision course detection, but I'm not sure that this single feature justifies the huge price difference ($100 vs $2000). I hope this app will have many more features and the solution will be used widely among glider pilots.