WH Smith launched their iPad app today. You have the option of buying and downloading their selection of 25,000 ebooks.
But how much is the app costing them? I have a source who gave me a heads up on the launch, and also told me that:
Sources report that ... annual Adobe fees to be estimated at other £100,000 per year and the maintenance fees at over £100,000 per year.
I'm not sure if it's true, but it would explain why it took so long for someone to develop an app that used Adobe DRM. This might also explain why Kobo went with their own DRM system instead of Adobe's. Just think what it would mean if that fee were per app per year. The maintenance fee sounds plausible. It's high, yes, but still plausible.
P.S. I'm waiting to see if Adobe or WHSmith will comment on this.