This is not a recommended method of installing applications on the Nokia N900, but follow this guide if you receive an app as a .deb file from a trusted developer. This is a fast and easy way to install from a file using the red pill mode on the Nokia N900.

I’ve been checking the Maemo Downloads site and found this cool little applet called Simple Brightness for the Nokia N900. It adds an option to the top control panel that lets you quickly adjust the screen brightness. I made a video to show you how it looks.

I’ve tipped readers to get their wallpapers at Interfacelift, but here’s a video showing how I do it directly from the Nokia N97. The same should apply to other Symbian S60 phones, but you need to learn which wallpaper size works best. For comparison, I’ve also squeezed in how it looks on the iPhone

The Nokia E72 isn’t out yet, but I’ve got to play with a pre-production model during the Mobile Geeks of NY meetup. It is the update to the E71, whose camera I absolutely hate. The camera app was the first thing I checked on the E72 and I was surprised to see a new autofocus system. Check out the video.

The Nokia Blog is turning 3 on September 30th and I’ll be giving away a brand new Nokia N97 that day. Tell me what mobile computing means to you and I’ll pick my favorite response. You have until September 29th 11:59 PM Eastern time to submit it. I will accept tweets, comments, blog posts, and preferably videos. Just make sure I can find it!