Perhaps the problem isn't the marketing, but rather that your phone selling strategy is off. How come T-Mobile still does not have the Lumia 900? Still waiting ....

At the University of Michigan we have developed a "Mobile Participation System" that allows students to participate/interact in lectures (up to 1000 students or so). The instructor can setup multiple choice, math or word based questions, and subsequently, students respond using any of the following options:
1. Text-messaging (SMS)
2. An iPhone/iPad/iPod Touch App
3. Android App
4. A Laptop

Best of all ... it's free!

This system is about 2 semesters old at this point and will be presented this year's ASEE conference. If you'd like more information, here is a link to the document: http://braunschweig.eecs.umich.edu/~mlapp/downloads/refs/P08-ASEE-2011_MPS.pdf

For a live-demo, check out our YouTube video: http://www.youtube.com/watch?v=6HKuH3pq58E