Just got the new Garmin Edge 1040 Solar... most noticeable difference over the old 1030 upon turning it on, is that the touch screen seems a lot more responsive. As for the effectiveness of the solar panels, well I have a 400k coming up this month and I'm looking forward to seeing how well it works (assuming a sunny day). Usually the 1030 is just barely enough for a 400k (depending on how fast you ride and finish) - 20-24 hours is probably ok depending on the age/condition of the battery, but past that you'll have to recharge during the ride.