More Qt Ambassador Kits on their way!
See my post just before yours. Knut Yrvin is now in charge of the Qt Ambassador program (he stated that explicitly in an email I received from him on 25 June 2012) and I have had no issues communicating with him via the official ambassador email address (although, as I also mentioned, they are extremely busy and each communication cycle takes time).
Qt are not Nokia property presently. So, yes, Nokia Qt Ambassador program is dead.
But here [qt.digia.com] Digia gave promise start new Ambassador program as soon as possible