>>And what is the likely lifetime of WPF or is there already a replacement brewing with Microsoft which will again invalidate developers years if experience training .
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>That is asking for the unknown future (speculation?). If they find a better way I don't see something wrong that it could change again.
>Cetin


No I agree but sometimes it seems like you climb the Microsoft mountain and when you get to the top you see there's just another slightly taller mountain in front of you.