Of course the experiments are in released products. How else are we to find out whether proposed features are useful to designers or not? Really you're ranting

Of course the experiments are in released products. How else are we to find out whether proposed features are useful to designers or not? Really you're ranting about poor web designers who don't understand that different web browsers behave differently, particularly w.r.t. newer features and especially w.r.t. unstandardised features. Do you really think poor web designers would stop designing mobile sites specifically for the iphone's screen dimensions and start taking the plethora of android devices into account if only they were restricted to html4 and css1?