Because the vendors try to tie the phones to their app stores. If you buy a Sony Ericcson Android phone, you will only be able to use the SE app store. And so o

Because the vendors try to tie the phones to their app stores. If you buy a Sony Ericcson Android phone, you will only be able to use the SE app store. And so on. So I will have to publish my app to a lot of app stores. If it can be done automatically, maybe it is acceptable. But I think it won't be like that. The vendors have different philosophies, too. For example I think Sony Ericcson wants their app store to be more like the Apple app store with harder admission criteria.