I bought one and am sending it back after three weeks of trying to make it live up to the glowing reviews it was getting from a bunch of paid websites. The first one was so bad, Magellan sent me a second one. It didn't work any better than the first one. Magellan must think the world is full of alpha testers so they sent out some fine sounding press releases to create buzz about the Pro10. That buzz may prove to be a swarm of angry consumers that come back to sting them when enough people buy this thing.
If you like PDAs that lock up, hardware and firmware that doesn't work, buttons that take 5 lbs of pressure to activate, a screen that crowds the right side so bad that the scroll bars don't work, this is the device for you. Microsoft Windows Mobile 6.5 is not helping much here either.
When something goes wrong (right after you boot for the first time), call their "help" line in the Philippines. Don't be surprised when the "engineers" tell you that Magellan doesn't have a model called the eXplorationist Pro 10. Don't worry when they give you the phone number of Ashtech for technical support. Ashtech is loving it because it gives them a chance to sell you their competing product in this market. Apparently the news hasn't reached Manila that Magellan and Ashtech parted ways long ago and they are direct competitors.
I should have been suspicious when the press releases about this device came out in April but it was only available for purchase in September. Got to wonder if their undergrad development team was waiting till the last minute to turn in their student thesis. Magellan actually makes Trimble look good.