Everybody, you can stop panicking. Microsoft has solved the digital signing problem that prevented app installations on older Windows Phones, as promised, and the flow of new apps is back to a steady stream. It may take a day or two before new titles show up in earnest; developers whose work was in caught in submission stage limbo won't have to restart the process from scratch, however. The quick turnaround is no doubt good news for developers. We'd argue that it's equally good news for Microsoft, too -- there's no doubt that the crew in Redmond would rather not have to explain any lengthy publishing outages while it's onstage with Nokia next month.