Just starting to look at internet-capable applications, and since I hope to stay on the pay-as-you-go data plan, using minimal K matters!
The first thing I noticed, the built-in mail client doesn't seem to have a send-only feature, only send and receive (I'm not using a synch to my work Outlook just POP/SMTP to my comcast account). Is there a way to do a send-only and not a send-receive? A different mail client to recommend?
Second, I'm open to suggestions for weather-checkers that use minimal bandwidth (although I'd like to be able to pull a radar image from time to time as well, I am outside a lot on weekends and being able to see if the rain is just a blip or the edge of a huge front would be useful

So perhaps I need a couple weather-checking clients, one for each case?
Similar for mapquest-type applications. Just the minimal, I don't want to go to mapquest.com with IE and get all the junk. And I'm not sure the google maps utility is that low-bandwidth, either- is it the best option?
I looked a bit and don't see as many stand-alone low-bandwidth clients as I thought I would; and PDA-specific web interfaces things like
www.mapquest.com/pda (which doesn't seem to be running at the moment) may not exist for a given service ---
Others I haven't thought of yet?
Thanks for thoughts-