@Mainline, Ken has stated the 55nm Chips are taped out. I do not know about the 28nm but I can confirm that Ken has stated that the 55nm chips are taped out.
Are you sure? I'll scan trough his posts - do you have a link handy?
Edit: You're right, he did:
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The chips have not been produced at this time. We have just taped-out, so this is the start of the manufacturing process.
Which brings me back to:
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If they're taped out, then they have money to see it through.
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Wishing to sell after tapeoput can mean a couple of things: The chips are unprofitable or the people selling them are insane.