I had an interesting comment on this blog recently based on an older blog article. The question was around the Public Internet Connectivity licenses and whether they were still available. I checked with some great folks in Redmond and got a pretty clear answer: PIC is still alive and is being sold. Rumours of its demise seem premature and/or in error. Hope the helps.
My Redmond contact also pointed me to the Office Live Communications Server PIC page which should answer all the relevant questions.