This should properly be two threads. Sorry.

Regarding the screens, all are not made alike. The difference between a bad fake and a good fake is huge. For instance a remanufactured N900 will have a fake touchscreen. The difference in quality of the two remanufactured touchscreens is obvious. The later touchscreen on my two remanufactured (made in Finland ) is much better. You will also see if looking around here that some touchscreen suppliers supply different types and not at all consistent.

So, looking for reliable LCD suppliers and reliable touchscreen suppliers.

Regarding the bluetooth keyboards. It happened with two different keyboards with two separate N900s. And I checked both keyboards work with other devices as keyboards.
The verbatim keyboard will pair but once connected, the BT icon goes permanently blue (which didn't happen with my stowaway) and the keys don't work.
Trying BT-HID-scripts now as I've been using extkbd up until now. Still no luck.