Everyone running Windows Mobile 6.1 or higher is familiar with having .NET CF 2.0 built into ROM. And adding the much-improved .NET CF 3.5 for third-party software  is common.

Evidently Microsoft has updated to .NET CF 3.7, and the .cab file (extracted no doubt from one of the hundreds of "leaked" HTC ROMs out there) is available to install to your device or cook into ROMs.

Changes and improvements are unknown at this time. But if you're feeling adventurous, head over to PPCGeeks or XDA to find out more, including how to get the .cab!

Chris Craft has finished his “30 Days of .Net” marathon of development, wherein he developed a .Net app every day for 30 days. We told you about this epic task just under a month ago and since then Craft has come up with some pretty great stuff, including everything from a simple flashlight app to an app that repeats alerts in case you missed them to a Death Calculator to (get this) a framework for sending commands to a WM smartphone via SMS.

You can check out the roundups of each week, too:

• Week 1 apps
• Week 2 apps
• Week 3 apps
• Week 4 apps

Congrats to Craft for finishing this epic task and congrats to .Net too, for being an easy-to-develop-for development platform!

Many of you may remember the “iPhone App-a-Day”, wherein one enterprising iPhone developer created an iPhone app every single day for a month, many of which were actually useful and interesting.

Well we can't let those iPhone developers outdo us, can we? No sir, so Chris Craft (no relation to the boats, one assumes) is doing the same using the .Net Compact Framework and Windows Mobile. This is a great way to evangelize the platform:

But instead of telling people, I'm going to show them how easy it really is. The key here is simple: “Taking baby steps is better than taking no steps at all!” I plan on writing 30 mobile applications in the next 30 days. I will publish both the executable and the source code for each application. My goal is for each of these applications to be useful, interesting, and straight-forward. Someone considering writing their first Windows Mobile application should be able to look at these applications and “get it”. - [Chris Craft]

So far he's made a neat Minutes to Midnight (no relation, one assumes, to the Linkin Park Album), a Bluetooth manager, an excellent GPS Compass, and now a Mileage tracker complete with cost per 100 miles and max range.

...In other words, Windows Mobile not only is a great platform to develop for, it's easy to create powerful apps in a jiffy too. Bravo Mr. Craft! Check out the apps at his blog.