Other.

1. I have never bought a smart-phone because i don't like phones, they are mere devices rather than flexible platforms like my beloved computers.

2. I also dislike being contracted into paying for a service, especially when that service is tied to me in a way that makes me 'visible'.

For this reason I have always had unlicensed pay-as-you-go phones historically.

Why then am i interested in a nokia n900?

1. Because the n900 is the closest i have found to a phone which is also an honest to god computer rather than just a fancy device.

2. Because I >hope< that i will be able to use that open computer'iness to replicate the Web 2.0 functionality of current smart-phones with an unregistered pay-as-you-go sim.
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I am hoping i can acquire a pay-as-you-go sim with internet ability.
I am hoping i can use local OSM maps cached on the n900 for navigation.
I am hoping the maemo/Ovi application development community can compete with the iphone app store.
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If this isn't possible then i have to weigh up my dislike of service contracts against the ability to make the most of my new web-enabled n900 computer-phone......................

So the answer is Other.