OK, I’m exaggerating a little. But seriously, where are the MIDs (devices formerly known as UMPCs)?

I really need a device like a Nokia N810 tablet with a built-in cellular connection. Like an iPhone with a keyboard and applications. Like a BlackBerry with a big screen and a Nokia browser.

Since attending MWC in Barcelona last February (where my 5-star hotel didn’t have a safe for my laptop), my shoulder hasn’t been able to stand carrying my laptop for more than a couple of minutes at a time. For travel, I can stow the computer in a rolling carry-on bag, but when I am on the road all day and need to get email, get online, update and make a presentation, and maybe read and annotate documents, I need something smaller but nearly as capable.

Yes, I know there are some great eeePC and Vaio devices out there, but am I willing to abandon my favorite Mac productivity programs? Indeed not. (I’m less picky about the browser and email programs for occasional use.) What about MacBook Air, you ask? Yes, it weighs less, but it still has a large footprint, and would require me to carry my laptop-sized purse around. And a charger. I want something that fits in a normal purse.

What puzzles me is that I haven’t found the “right” device, even though so many come so close.

Where’s my dream device? [If you say Nokia Communicator series, you are automatically out.] Anybody listening out there?