On the Gadget show a couple of weeks back, they tested various training apps which use GPS. I currently use the Suunto X10 which was probably really good when I first got it a couple of years ago, but today’s app have many more useful functions.
A sports colleague told me this week about a real advance in these types of products called Kinexon One, which is being launched this month.
http://sport.kinexon.com/It gives online analysis and is a cloud-based solution for analysing and visualising training data on mobile devices. You carry a small, portable location sensor and the resulting data is fed into the cloud from a stationary base antenna, this enables users to track and analyse various performance parameters to centimetre level and all in real time. His club have ordered one and I will be going along to see just how good it is and how poor I am