I like the flexibility of the n900. You can pretty much install anything you like.
E.g. I use Python and Django is installed on the n900 too. There is also Easy Debian - I bought a combined bluetooth keyboard and trackpad and now for me the n900 is a "proper" portable computer.

Quite frankly, I don't care who makes a device like this. If Nokia produce something similar again then I may upgrade. If Intel or Microsoft (unlikely) produce something like the n900 then I will quite happily jump ship.

I don't care who manufacturers my "phone" as long as it can meet my requirements of the n900.

In fact I would go back to two separate devices if I got something like this: Pandora

I like Android but I am paranoid about my privacy and also Linux software is difficult to port over (no glib).

And Flash can kiss my hairy a*se!