Have you guys even used Boxtone? Just curious, because saying that they don't provide root cause analysis and troubleshooting is a bit absurd and quote overstated. Also, one of the biggest differences for me were the asthetics of the product - web-based portable versus client-based installation. Perhaps that's not that big of a blip on the Zenprise radar, but in a day and age when everything is moving to the web, it ranks pretty high up on my and many others' list of high priority requirements.
In the beginning the Universe was created. This has made a lot of people very angry and is widely regarded as a bad move.