The word just got out that Apple is hosting an iPhone OS 4.0 preview event on April 8th 2010. The invites sent out read for a sneak peek of the next generation of iPhone OS software. Now this is something we've all been waiting for. What will Apple showcase and what sort of features we can expect. It's only three day's away so keeping in view the secrecy Apple had on this OS, it must be big.
Let's wait and see as I am sure within next 2 days, a lot more word will get out as to what to expect as you already know the marketing tactics of Apple and Mr. Jobs.