I'm wonderimg if anyone recognises this and if there's anything to be done about it.
My N900 has become a sad little machine...
First the GUI has become slow especially when the desktop, dashboard and application menu. Task switching takes several seconds. The keyboard has also started to lag at times, sometimes characters take seconds before showing.

The thing I did right before this started was activating the Position widget which froze and then crashed the desktop.

And no, restarting doesn't help.

Fixed by disabling all widgets and then restarting device.