THIS is a really fun bit of gear. As well as the usual cycle computer functions, it tells you your altitude (based on air pressure) and also has a stab at calculating the gradient of the hill you are on. As a bonus it also gives you a temperature readout.
They know a thing or two about rain in New Zealand and not surprisingly they know a thing or two about making waterproof tents. I've had two Macpac tents and they are the only ones I've owned that are genuinely downpour proof.