The plan, as laid bare by Ping’s CEO, Andre Durand, is as follows:
1) Hit a Yearly Revenue of 100 million USD.
2) Grow that to a Yearly Revenue of 1 billion USD.
3) Grow that to a Yearly Revenue of 100 Billion USD (and go public somewhere in there).
4) Assume that Microsoft’s star has faded some, and launch takeover efforts.
If you ask me, that’s a plan as credible as many others you see nowadays. Only it’s more fun to read ;)