To be fair, it's not going to ship initially, but Adobe and Microsoft both have said they are working to make it happen. Of course as Bruno has already pointed out, no mobile platform has Flash today anyhow, just Flash lite and such.

One undiscussed thing that is in 4.0 that has me excited is IPv6. Hopefully this means that 4.0 will also bring in proper Back to my Mac support for the iPad. Would be nice to be able to access my home desktop from anywhere just like I can currently off a Mac laptop.