Any chance of an evaluation version? I'd like to try this out, but I'm not convinced by any extension until I've had a chance to give it a road test. I'm also in the UK, so I need to ensure that it works OK with British addresses.
If you would like to provide me with some sample locations I can create a UK demo for you on our site so that you can give it a whirl with those addresses. I'm pretty confident it should work with out any issues.
Unfortunately we don't have a demo available for download at this time, but I will let you know if one becomes available.
BTW, when you get the chance, you might like to change the text "Try Searching for: "11768" or "Northport, NY"" to "Try Searching for: "LD1" or "Llandrindod"" - it's a town pretty much in the middle of the locations.