Is it possible to detect Core or system Temperature of iPhone ?

Question

is it available in iphone sdk ? if yes could you show me some example?

Answer 1

No, it's not available.

It maybe possible if you're using an external accessory or hardware.

Here's the API: http://developer.apple.com/iphone/library/documentation/ExternalAccessory/Reference/EAAccessory_class/Reference/Reference.html

Answer 2

Yes, but there's no public API for it (you need IOKit to communicate with the hardwares).