In theory MeeGo has enormous potential.
Imagine running the same os on your n900 and your laptop/desktop pc.

But, unfortunately will not be the case for the forseeable future because:
System Requirements

* CPU: Intel Atom or Intel Core 2 CPU (support for SSSE3)
Note: MeeGo will not work on non-SSSE3 CPUs
* Platforms with the GMA-500, Nvidia, or ATI Graphics chipset are not supported.
* Tested netbook and nettop platforms

If you are inclined to do so you can download the source code to MeeGo and get it working on your system (isn't open source great!) - e.g. disable SSSE3, compile X/kernel drivers for your video card.

My biggest problem is that SSSE3 is required and limits what you can install MeeGo to. All the x86 packages have the SSSE3 support compiled in - even non GUI apps like bash!

What happens when a third-party releases a binary-only version of their app and you try and run it on your custom installation?