Hey,
This is a great idea. The backight is also good. My personal preference is for a vertical slider, makes it more like a Nokia E71/72 or BB style (and with the slider same concept as the Torch). Like this one: http://www.boxwave.com/cases-and-cov...ion/bwpds/vgw/
Boxwave also has a request form to request they make accessories for specific devices here http://www.boxwave.com/community/req...?productid=629

They make accessories for the N900 already, so they aren't afraid to make accessories for niche devices (although I'm guessing there are many more N9s that have been sold so far than N900s).

Maybe a mass request will help.
I'd also love this double as an extended battery, athough it would be difficult with the door for the micro usb port (mine broke a few months ago, so it's aways open for me). Maybe I should start a new thread on extended battery options?