[sandyarmstrong]

If my mobile email client didn't have good offline functionality I'd be looking for another one. Reading and queuing emails to send should generally not require a connection.

Weather is another strange example for you to pick. Yes, the more recent a forecast, the more useful it is. But if I checked the weather this morning, and then want to reference that again in the afternoon (to make a plan for the weekend, for example), that should work without a subsequent connection.

And really, there's no reason I shouldn't be able to check Facebook updates and comment when it's convenient for me. Inherently asynchronous activities like this are well suited to offline scenarios.

Shopping is a better example, but you're 1 for 4 here, in my opinion.