Oba! our net connection just got WAY better!!!
But then this morning when I connected I noticed that it was a four bar connection, and we're on 3G!!! I tested the bandwidth to see if it was just some weird glitch and we got a consistent download speed of 2-3 megabits! We've never once had more than a single bar on 3G, and the absolute best bandwidth we've ever had is 1 megabit, and that was very intermittent!
All I can think is that a new tower must have finally gone up near by :-)
(At least I really hope that's the case, rather than it being some strange short-lived atmospheric condition or something!)
Update: By midday the signal had gone up to full strength and our bandwidth was consistently over 3 megabits peaking at over four!