So my girlfriend bought me a new toy for my birthday, a new GPS unit. It's actually a unit that's designed for my photography, the idea is that it can be sync'd with the in-camera clock and then the coordinates are embedded into the corresponding digital file, allowing me to keep precise track of where each photo is taken. However, the data logger can also be used for virutally any other GPS-related application. It can log coordinates for up to 250K time-points, so it's definately more than enough for me to use to track my movements while cycling. So basically my question is this... For those of you that use GPS, are there any software applications that are useful for graphically displaying the GPS data? Specifically, I'd like to be able take a recording every second, then use software that will calculate my speed at that given timepoint and display it on a graph. Is something like this available?