Should extension properties be added to C# 4.0?
<p>I've wanted this for fluent interfaces. See, for example <a href="http://channel9.msdn.com/forums/Coffeehouse/257556-C-Extension-Properties/" rel="nofollow">this</a> Channel9 discussion. Would probably <a href="http://ayende.com/Blog/archive/2007/12/02/Why-C-doesnt-have-extension-properties.aspx" rel="nofollow">require</a> also adding indexed properties.</p>

<p>What are your thoughts? Would the advantages outweigh the "language clutter"?</p>
