iConcepts Thumb Board For Palm M500/505/515 Series

• One of the smallest, lightweight keyboards for your handheld computer
• Unique style lets you snap it on to the bottom of the data port on your handheld
• Tactile feedback keys lets you enjoy fast and accurate typing
• . Engineered and designed for the mobile professional in mind
• Compatible with the Compaq iPaq 3800/3900Series.

It's a tough job to add a useful keypad to a device that wasn't built with that in mind. This one is very lightweight, so the balance of the combined palm (m515 in my case) and thumb board is wrong, which further aggravates typing, and of course it's a hassle to use if you have the palm in a case of some sort.

The supplied software didn't work with the m515 at all--it never noticed the device. I had to download an update from the manufacturer's website, which itself is very hard to find (the actual manufacturer is sakar).

But it does work. Unfortunately you have to use the blue FN key to enter numbers, and the space key is unnecessarily small. For some idiotic reason there's no semicolon key (shifted, FNed, or otherwise). Perhaps a better idea would be a cabled or wireless keyboard, rather than this. I doubt I'll end up using it very often.