Are there native frameworks which use XHTML? Regardless, a document language being used to construct complex, interactive GUIs is incidental complexity. XHTML can be a compilation target but it does not need to be a development target.
But what's the benefit of using e.g. <row><cell> over <tr><td> if your only target is the web?
But what's the benefit of using e.g. <row><cell> over <tr><td> if your only target is the web?