Thanks to all your people's hard work (both Mapthis!, Nieko's version and GMDL).
I have recently used mapthis! in Australia, Hong Kong, Taiwan, Singapore, London and New Zealand and found it works fine. The system took around 30sec~1min to fix the satellite link.
I suggest that new users please read through the Wiki books first.
http://en.wikibooks.org/wiki/Map_This!
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