Ubuntu Networking :: Enable And Connect Mobile Broadband From Command Line Script?

I have a Sony TZ270N running Ubuntu 10.04 splendidly. The Sprint Mobile Broadband works great, but it's a bit cumbersome to activate. Specifically, to get it to work I need to:

echo 0 > /sys/devices/platform/sony-laptop/wwanpower
sleep 5
echo 1 > /sys/devices/platform/sony-laptop/wwanpower

Then I wait another five seconds, right-click on the networking icon, choose "Enable mobile broadband", then left-click on the networking icon, and choose "Connect to Sprint Connection". I do this multiple times a day, and it's just a bit of a pain, especially when in a hurry. Accordingly, I'd like to script it so I can do the whole thing with a single command.

I've already put the above echo statements into a script and it works great; is there any way to script the actual start of the PPP session itself -- with the caveat that I'd like the networking icon to accurately reflect the latest state?

(In other words, I don't want to bypass the networking icon and just launch the PPP session in the background -- I want it to show that I'm connected, and still let me manage the connection via the icon after connected.)