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Bluetooth 2.0 is a new standard that is supposed to add greater range, more features, etc. Even with that, I question such long ranges.
Note that the tech specs say “Bluetooth 2.0 compatible with 802.11b tolerance”. This means that the 2.0 spec still uses the same 2.4GHz spectrum. I would think that the presense of any 2.4GHz WiFi activity would kill the performance and usefulness of Bluetooth 2.0 over an extended range.
Besides, since they both share the same spectrum, I don’t see what advantage Bluetooth 2.0 would have over WiFi for a long link. Bluetooth was designed for easy paring of devices in a very local area. After early problems were worked out, it does seem to do a good job at that.
Given the security problems with Bluetooth, I don’t think I would want a cell phone or PDA with the ability to pair with another device from down the block. Things are bad enough with the short range of the current spec.