I think Webtop is still being used, not that I've heard of any new customer announcements since Laszlo has been acquired. But that's probably due to the zero marketing activity we have seen.
Laszlo used to have an active announcement mailing list, but that has been dead since August 2010: http://www.openlaszlo.org/pipermail/laszlo-announce/ Last announcement there was the 4.8.1 release. Laszlo/CP has been doing development, although the number of commits is much lower than it used to be. People kept telling me that Laszlo/CP is still fixing bugs, but most of the features which have been added in the past 4 years have not been tested well or haven't received decent QA - due to lack of community members testing the platform and lack of resources on the Laszlo side. - Raju
