If you're looking for mobile email access and your budget counts out any of the usual smartphone suspects, you could do worse than head over to Amazon. They're currently listing the Peek mobile emailer at $19.99, a 60-percent saving on the regular price.
The only drawback is that you'll have to like the aqua (e.g. blue) color scheme, as the gray and cherry models remain at the $49.99 MRSP. You'll also have to budget for the standard $19.95 monthly rate, which gets you unlimited email access; Amazon don't seem to have updated their listing to take into account Peek's cessation of unlimited SMS support for the original Peek device. If you want SMS you'll have to upgrade to the Peek Pronto.
Still, it's a bargain and if the user reviews are anything to go by the Peek is a distinctly straightforward way to get mobile email access. No word on how long the discount will last, though, so if you want one we'd recommend buying sooner rather than later.