I am just back from a weeks holiday. While I was away I had just about no connectivity. I had packed my laptop and iphone, but there was not internet access I could find and I had to walk about a mile to a nearby cliff top to get a mobile signal!
I gave up on following RSS, twitter and getting email and left the laptop shut. I did do a bit of photo blogging from my phone to my posterous account, and this worked very well.
The new iphone software allows you to mail up to 5 photos instead of just one, posterous makes pretty galleries of sets of photos. The mail app on the iphone allows you to create mails and then will send them later whenever you get a signal, this turns out to be a great feature in comparison with other iphone blogging applications.