recently I faced a problem when we launched HP OV monitoring system. It is required to ping all enabled interfaces on ASA. "Inside" interface is monitored well but "Outside" is unavailable by ICMP and due to this alarm generated. I know that PIX's and ASA's with 7.x versions of software don't allow to do this (this is clearly noticed in documentation, here for example). But in documentation for version 8.2 (actually this version software installed now) I can't find any information regarding this question. I wonder if I missed something and such function was enabled in recent versions of software?
Jitendriya is correct--it is still not possible to ping a far-side interface on the ASA. This is by design and cannot be changed due to security restrictions. Here is the documentation for 8.2 that outlines this:
The adaptive security appliance only responds to ICMP traffic sent to the interface that traffic comes in on; you cannot send ICMP traffic through an interface to a far interface.
Hope that helps.