Another take on the mobile uptake by large enterprises.
https://spreadsheets.google.com/spreadsheet/ccc?key=0AhYIxhyRrYpMdHNFRFhRNGlYMGRIUm5TeE5WbVl2V3c&hl=en_US#gid=0

And a blog:
http://the.appconomy.com/2011/07/appconomy-labs-mobile-research-on-the-fortune-50/

My take: this is a great first effort. I'd love a field summarizing the app deployment so I don't have to click on the links. Categorizing them, too, would be great, i.e. customer-facing marketing app, vs internal mobile CRM app, vs ERP supplychain app, etc. I'm looking forward to more!