> Mmm, OK. My mum's works laptop used to have GSM capabilities. It was 
> several times slower than a 56K modem, depending on location.

LOL, I used to have a 2400 baud modem too.  Well, as usual, times have moved 
on since then:

http://en.wikipedia.org/wiki/High-Speed_Downlink_Packet_Access

Most service providers seem to be offering a flat-rate "mobile broadband" 
package for around 20-30 pounds per month, really useful if you need a 
network connection and travel sometimes without access to free-WLAN.

> OTOH, presumably if you lose your keys, they have ways to fix this, so it 
> can't be *that* secure.

If you "lose" both keys it is a long and difficult process to get a new set 
from the manufacturer.  Of course they are going to check with lists of 
stolen cars before doing so, and I guess you have to provide proof you own 
the vehicle, ID etc.  Most of the time people just lose 1 key, and then it 
is quite trivial to buy a "blank" key and reprogram it from the old key.

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