What the heck is "Good Technologies" and where are they pulling their numbers from?
They provide the (mediocre at best)* Good for Enterprise email app on my company's iPhones, which are restricted so much that we've had to provide sub-par apps to replicate existing functionality which is blocked. For example, we have an app which allows us to take GPS-tagged photos, add some text, and have it emailed to us as a PDF. It crashes a lot, regularly fails to send the PDF, and forces small photos, which are so grainy that it's difficult to work out what exactly we were trying to record.
If we were allowed to use the standard camera app, and the standard mail app, this process would be much easier and might actually work. As it is, I usually plug the iPhone into my laptop and use Outlook to send the photos.
*with a name like that they're asking for it!