UPDATE
The alpha is now in the extras-devel repository.
It is also downloadable from garage.
See this post for more info.
END UPDATE

Sod it! Let's go for a public beta.

I've created a .deb that should deal with dependencies. It installs mSideShow into Extras.

Get it here;
Edit: Link removed.

At this stage, it only deals with glance data. That means there's no controlling music players, reading emails, viewing contacts etc.

A few things:
PLEASE report any issues.
PLEASE pass comments (good or bad).
Ideally, your tablet should already have a Bluetooth pairing with your Windows machine.
You may need to tell Windows to use the SideShow service. This can be done by selecting the "SideShow" tickbox in the Services tab of your Bluetooth device properties in Windows.

Have fun!