Talk about suspect numbers: IDC has come out with some wild predictions: that worldwide wireless subscribers and customers to grow by a little more than a billion over the next four years, generating $800 billion in global wireless service revenue by 2011. Why did it stop there? While we are at it, why not a trillion?

Then, it expects mobile entertainment will account for 5.1 percent of this total revenue and 23 percent of all mobile data revenue. The vast majority of this mobile entertainment revenue will be derived from ringtones, ringback tones, and mobile TV and video services. According to IDC, ringback tones will overtake ringtones in 2010 and become the single largest revenue source for mobile entertainment due to a “variety of inherent advantages.” You mean annoyance factor?

That and the fact that you have to pay $4,500 for these numbers…they can certainly rack up $800 billion that way.