Are you sure that it's not enough? Seriously?
Let's wait until March 28th after earnings call ... I don't foresee sales of the Z10 to show an increase in revenue significantly as the roll-out is a bit slow - recall their largest OEM stopped making devices for them back in January this year (announcement was made in summer 2012).
I expect the next quarter to show significant revenues. I still believe their machine to machine business is a sleeping giant currently; which is based on the company they now own QNX, the real-time OS, and their infrastructure NOC which is tied into over 208 providers (think Nortel in early 80's).
If one understands their NOC and how it hooks into providers GGSN's, and creates APN's on a top level you'll understand what the QNX team is doing with car manufacturers beyond what we see.
Porsche
Audi (MMI)
Cadillac's On-Star (this is a GOOD representation of where their going yet without a person assisting you). BTW, On-Star uses QNX from top to bottom to get sensor readout, car positioning, audio relay ... all this beyond the user UI for music, GPS, and car controls (like windshield wiper, turn indicator, engine knock sensors to communicate, oil-pressure sensors, etc etc).
True they ARE ripe for takeover ... so many analysts have been preaching and predicting this the past two years yet NOBODY is biting yet. Why? Because they want the leg work to be completed before purchasing - you don't buy a half working car if you're going to spend a fortune to fix it up and get it rolling, do you? Lenovo's CEO seem to be flip flopping on statements like he's pumping and dumping the stock!!
This is what I mean by Machine to Machine business ...
source: http://seriousmobile.wordpress.com/2013/01/06/rim-bb10-true-end-game-is-qnx-noc/
(NOTE: this is my blog and I've done a fair bit of research far and beyond what I'm seeing so called analysts focus on with respect to BlackBerry; something I find appalling).
You're doing a fine job advocating for the "Homeland." I just don't see it developing. But hey, it's just my opinion.