Everyone knows Apple’s approach to their OS is proprietary. Even though Microsoft’s Windows Mobile 7 OS is freely licensable, it is fully controlled by Microsoft. And now that Google has bought Motorola, Android is looking more and more like it could become more tightly controlled as part of a vertically integrated offering. Unless HP quickly states that webOS will not only be licensable but also truly open (which I don’t think they will ever do), then I believe that there is serious room for a completely new mobile OS to emerge and especially give handset vendors targeting emerging markets an OS of their own to work with.
Not a lot of choices for handset makers that would allow them to compete with Apple.