At the C++ committee meeting in Lillehammer last April, I'd asked if there was any interest in a TR2 proposal for the Signals library, and got a positive response. I'll be collaborating with the libsigc++ folks to put together a proposal for the upcoming meeting, which will be discussed on the libsigc mailing list: http://mail.gnome.org/mailman/listinfo/libsigc-list We'll naturally be taking the good features from both libraries (tracking, combining, syntax, etc.) and tossing out the bad (*ahem* named slot groups). Interested Boosters are welcome to join us over in that forum. Doug