Whilst in the local town center today, ostensibly to cut my hair cut, I spotted a bluetooth keyboard and mouse, sold seperately, in Wilkinsons. My other bluetooth keyboard recently developed a fault whereby the up arrow stopped working, and I've been using a wired mouse, but for £25 for the 2, I thought why not. I can report great success!
The lil' 7 is more than happy paired to the 2 devices simultaneously, plus, I can keep it on charge at the same time (whilst I'm waiting for my OTG & charge doobery-whatsit to arrive from The Peoples Republic).
I also can now put the lil'7 on the shelf by the telly, connect up and full screen the **** out of it! Oh yes steam-stream fans, you heard that right!
The mouse doesn't like working on a wooden table, but a .49p mouse-mat from Home & Bargain sorted it.