Nokia has published a demo application for N900, available in extras-devel repository, that shows a preview of Maemo 6 (Harmattan) user interface.

The source code for many components of Harmattan release have been released yesterday at gitorious. That is great if one is interested in digging through the code or compiling it.

For those who just want a quick test drive there is demo available for N900. It is actually rather simple:

- Click this link.
- Follow the installation steps
- Launch “Widgets Gallery” from launcher

Easy, enjoy, but beware, this is rather heavy, prefer WLAN.

Here there are some screenshots of the demo:

Demo application main window

Question dialog



Text entry dialog



Progress indicator



Information banner



Event banner

You can find more pictures in this Flickr album. Please note that installing this demo will also install Qt 4.6.2 on the N900 and about 52 Mb are required.