Bluetooth keyboard with Win ios Android
I've got a small, but not folding, keyboard that works with Android, Ios, and Windows devices. About 20 quid from Maplin, less online I guess.
It fits OK-ish in a jacket pocket and works with my Note 3.
The Note 3 can be connected to a large screen through a media dock.
I can also connect the keyboard to a larger tablet - e.g the ones with phone sims in from Yuntab.
Works fine as a cheap PC when abroad with office mobile apps.
I've never forgiven my business partner for giving my psion 5mx to his son without telling me after an unguarded moment I said I wasn't using it as much as I thought I would.