what configuration my dev machine shoud have in order to develop app for iphone/ipad?

[flyingbird]

or more specifically, should I buy mac pro, or mac book is enough?
I　have been a windows programmer for 7 years..How long it might take for me to get familiar with apple app development?

Thank you.

 

[GGJstudios]

or more specifically, should I buy mac pro, or mac book is enough?

Any Mac model, even the mini, can do what you need.