John, Thanks for answering Joanna about the Retama.
While I was away I was depriving myself of the Forum. This was because I was rationing my mobile internet very strictly to just emails and updating the Facebook page, as the mobile firms are getting around the EU's excellent control on internet data roaming charges (now restricted to 4.4p per MB, and soon to go completely) by setting a 750MB per month "normal" roaming usage limit. Anything above that and the consumer is deemed to be taking unfair advantage of the mobile company, so the charge per MB jumps to a shocking £1.07. In just the 12 days I was away, and just dealing with the Facebook and (very curtly) emails, I totted up 541MB. So only a few days more and I'd have been paying through the nose.