This looks very well thought out and phenomenally useful for general fitness alone, with the potential to handle all sorts of applications, including tennis analysis. It's unfortunate that they're incredibly vague about what "summer launch" means, considering summer is only a few weeks away.

It is also very unfortunate that Android compatibility will not exist for another 4-6 months at the earliest. Focusing on a single mobile platform isn't something that should still be happening these days, especially when Android's market share dwarfs that of iOS. I look at the decision to focus on iOS in 2014 as a highly questionable business decision, at best.

Yeah, this is way better. The tennis one is too focused, and the market is too small.