This week the Carnival comes via the personal blog belonging to Terence Eden, mobile enthusiast and Vodafone manager. COM #212 features a broad mix of posts, ranging from a new VOIP white paper available for download to the definitive list of mobile’s top 25 giants. What is high on the mobile agenda? Read on and find out!

Among the highlights:

• Tomi Ahonen connects the dots and adds up the revenues to provide us with an “Ahonen Index” that lists these giants (ranked according to the amount of money they make in mobile only).

• Over at MobHappy Russell Buckley provides us with an in-depth look at Mob4Hire and their unique app testing service that taps the wisdom of crowds.
• Holly Kolman at MobiEnthusiast.mobi – a blog for mobile website owners, developers, marketers and end-users – looks at the recent acquisition of .mobi by Affilias.
• An excellent and insightful post from esteemed colleague John Puterbaugh (also Nellymoser Founder & CEO) sheds important light on the emergence of an app ecosystem and what it means for major players – and the rest of us.