I'm now in Greece (Corfu) using Wind Plus non-stop on a tethered laptop. Some experience:
I was told in the Wind Shop where I bought the F2G SIM (€5, inc €1 credit) that I could activate Plus non-stop it by calling 1265 and following voice-prompts. Also that I could change the language into English. The former may be true but the latter didn't work: it said (in Greek) key zero for English - that got a short Greek response (don't know what) but no English.
I activated it by sending an SMS saying PLUS to 19369 (not 369 as an earlier post, though both might work.)
I have discovered that a blank SMS to 1269 gives me a balance.
The SIM packet says that I can recharge by sending a 16digit scratch card number to 1268.
On the subject of language, one US site says that it can be changed by dialling 1276 then 3 then 2 but I can't find that on the Wind site and I haven't tried it. (I can't find a list of such numbers at all on the site - in either Greek or English.)
The HTML mangling is bad using Firefox but I think I've partially fixed it by using this addon:
https://addons.mozilla.org/en-US/firefox/addon/3207
Set up a rule as follows:
. (single dot for the regular expression - matches everything) old="application/xhtml+xml" new ="text/html"
This allows me to see a lot of sites I couldn't - including this forum and my own Wordpress blog! Whether they will all
work I don't know.
I don't suppose that addon will work on the Nokia N810 which has the same mangling problem.
Plus non-stop doesn't work with other protocols (POP, NNTP) so I can't get usenet or use proper email - only webmail - which is a nuisance.
Edited:
1 Please feed back to me any experience of my Firefox fix. I'd like to interest the developer in providing a Firefox 3 version.
2 I intend to get a COSMOTE SIM as a backup in case I can't get a Wind signal in remote islands. Any equivalent cheap data package for that?