Apple iPhone app developers hit by patent claims

The move has worried app developers who are uncertain whether Apple will cover any legal costs relating to their apps. A company is claiming to have a patent on Apple's in-app purchase system

What move ? What happened and where ?

What is the source of this news ? At least either post full news or provide a link

Dear Ijaz Ahmad News Link is here:

I think its a racing certainty Apple will protect these developers. It's strongly in their interests, it's right, and they are no fools.