Does iPhone have any apps for ping'ing like Blackberries?

Question

I have an ordinary LG cell phone which i can hardly wait for the contract to expire. Furthermore, I hate blackberry phones. I want an iPhone to be my next phone. However, is there any apps that work like blackberries ping'ing each other? I the blackberry world, this is instantaneous messaging --->as opposed to regular texting whereby a text can take up to twenty minutes for the recipient to get a text sent from, say, my lousy LG cell phone.

Answer 1

email is only as good and as fast as the ISP available and texting is only as good as one's cell phone carrier. BB's, I must admit, are amazingly fast like a bzillionth of a second with like zero delay, .... UNLIKE email or texting. When i text my wife from my LG cell phone to her identical LG cell phone using Telus mobility, there can be as much as twenty minutes until the text is delivered (i sht you not, ....as we tested it on several occasions the time it took for a text to go from one phone to another and we were sitting right beside each other). BB's don't have any delay.... none/zero/goose-eagg/nada.