In asynchat, the only stuff that should be accepted is the handle_read() changes.  The deque removal should be ignored (we have deques since Python 2.4, which are *significantly* faster than lists in nontrivial applications), the iasync_chat stuff, like the idispatcher stuff, seems unnecessary.  And that's pretty much it for asynchat.

The proposed asynchttp module shouldn't go into the Python standard library until it has lived on its own for a nontrival amount of time in the Cheeseshop and is found to be as good as httplib, urllib, or urllib2.  Even then, its inclusion should be questioned, as medusa (the http server based on asyncore) has been around for a decade or more, is used many places, and yet still isn't in the standard library.

The asyncoreTest.py needs a bit of work (I notice some incorrect names), but could be used as an addition to the test suite (currently it seems as though only asynchat is tested).