Mobile internet gets cheaper and cheaper. On business trips sometimes it would be fine to read mails...

So - Flatrate? No way - I'm on the road for 2-3 days per month, thus a prepaid card (24ct/MB with 10kb parts at nearly all of the prepaid cards) with an old mobile seems to be the choice.

After configuring the mobile via SMS of my provider and selecting the packageservice it was really easy to establish a connection using my  eeePC running Xandros:

• Plug in the mobile via usb
• create new Connection
  
• select dialup (wait a bit)
  
• configure dialnumber and username/passwort
• Thats it! It worked out of the box!
  

Great!

Ok - the details  for my specific setup:
eeePC 701, Nokia 6233, USB Cable CA-53(shipped with the 6233), Blau.de Prepaid Card