Only been able to mountain bike once since Boxing day. Even if I had the chance to ride, the lap at Llandegla has changed a lot so I wouldn't have the satisfaction of beating my PB.
I bought a Garmin Edge 705, and it's great. I like that it shows up as a mass storage device, and the file formats are in the public domain. So it's quite a good gadget for a geek. The downside is that there doesn't currently appear to be a way to run your own firmware on it. Other problems I've found is that it loses reception under thick foliage, so the speed accuracy suffers drastically, and that the calories burned seems to be a massive overestimation. I'd hope that if I had a cadence/speed sensor, it would use this if satellite reception worsened. It's kind of important because a climb I like to sprint up has heavy tree cover and I want to know how fast I'm going so I can sustain the same speed. With a PowerTap I'd hope that the Garmin can work out calories more accurately. I don't know. Another disappointment is that my Trek Incite Team Link ANT+ sensors don't work with it. Yet the Bontrager DuoTap ANT+ sensor does work. I thought the whole point of ANT+ was interoperability?
Winges aside, it's a unique experience to go out somewhere on the bike and never have to worry about getting lost (other than equipment failure).
In an ideal world, my phone and my sat nav would be one and the same thing, so I'd only have to carry one. It would use low-power bluetooth to communicate with the cadence, heart rate, and power sensors. Some smart phones are nearly there, but there are no bluetooth sensors yet and you've got to wonder how long the battery lasts with the screen on all the time.
As for fitness, my recovery has massively improved over last year, I can ride the bash twice a week doing quite a bit of work on the front. I'm still crap at time trials, and I haven't been doing many club runs. I'm struggling a bit on the hills compared to last year. (I won one of the two club hill climbs last year, not bad for someone who regularly comes last in other time trials).
Since last year I put some Dura-Ace carbon laminate wheels on which are fantastic, and some carbon bottle cages. I've decided I'm not spending any more money on the bike.