I just purchased the new Targus Wireless Universal Keyboard (model PA870U) at Best Buy for $79.99.
[Details at Targus.com]
This is a terrific keyboard!
Check out the links above for screen shots and other details at the Targus site. This is not the leanest keyboard. In fact it is rather hefty. I had the original Stowaway Keyboard, and would say that this one is a bit thicker and perhaps 30% heavier than that one. However, its features more than make up for its bulk.
It uses infrared technology, so it can be used with most Palms and Pocket PCs. It has a unique arm with the infrared at the end, which brings infrared right up to your IR port. I tried the Pocketop keyboard, but did not like its cramped space, and strangely placed keys. By contrast, this is a full size keyboard, with the look and feel of a notebook computer.
It seems to be very well made. My secretary, who touch types, hated the Pocketop, but gave this one a resounding thumbs up.
Oh - and another amazing feature - they keyboard includes an 8 direction mouse pad! I didn't expect that to amount to much, but found I can use it to eliminate about 70% of my stylus use while I am typing. It has great programmable function keys as well.
If you are looking for a reliable, "notebook replacement" type of keyboard, this is the one.