I've been using a framework called ChocolateChip-UI that allows for persistent headers (and footers, with a very minor hack) plus almost everything else you'd w

I've been using a framework called ChocolateChip-UI that allows for persistent headers (and footers, with a very minor hack) plus almost everything else you'd want. I'm using it to build a Twitter client for the BlackBerry PlayBook. Check it out: http://www.chocolatechip-ui.com/ http://www.chocolatechip-ui.com/