I thought I'd report on use of my wifi travel router in hotels.

My router -- a Netgear WGR101, with firmware updated -- worked fine (notwithstanding bad reviews it gets elsewhere).

However, there were two problems worth relating.

Using it in shared mode, with my brother with whom I was sharing a room, worked fine at first, but then, after a short period of a half-hour or so, the network discovered that there were two of us using a single line (for which they charged an absurd $30/day), and it booted off the second user.

Also, and this is probably not an issue for most of you -- it's an issue only for those of you who are not security-conscious to begin with. We left the router on, left the hotel, and the 24-hour period expired. In our absence a hotel guest in a different room had gotten on our wireless connection and clicked to pay for another 24 hours ... and the $30 got charged to our room!