Well whether we like it or not closed platforms are the future and there nothing we can do about it. Well I can't make that prediction but so far it looks like it.
how long will that last it has been criticized for not being "consumer friendly" so how long will the openness of Android lasts how long till Google closes there platform.
Windows Mobile used to be one of the most open platforms ever now with Windows Phone 7 Microsoft has closed there platform and made it more restrictive than the iPhone!
So we either need to convince consumers not to buy products or learn to accept closed platforms. Also Symbian was never really open we all remember running Helo0X2 on Symbian to bypass "Symbian Signed" in reality Nokia phones aren't that open either.