There is a Skype chat frequented by a number of current and former Clarion developers. As of May 5 2012 it had 66 participants out of a maximum of 300.
To join, use the following Skype URI (also effective May 5 2012 - if it no longer works please let me know):
skype:?chat&blob=_l4tAsLhyMZ4c5-dXGxfA2AxrjqJz3WLiFO5U6TXastNMmVRXMsIUW-2ADahjureK1QcTCmYw29a_N4Ov7N1XXjcFhxQvmkZ0iJ2nhyW9-mB_YlY-gR47-cJ8abupGcgymlhnT6mwu69lOQEBLaYU_pUNbPZDHIwe5MovbL6kncwRjq5EiR0ydswWTGYZC_1WqgfsQcf2EBQbqf0FQ