"DOM" for RDF?

Hi,

I'm sure this has been discussed many times and/or ages ago, but I am 
struck by the absence of a DOM-like W3C framework for RDF. By this, I 
mean "an application programming interface (API) for [RDF graphs]", 
which will be "a standard programming interface that can be used in a 
wide variety of environments and applications. The [RDF] DOM is designed 
to be used with any programming language". (Quotes taken from [1])

A quick search turns up a number of PHP-based libraries, and the odd one 
for javascript, Delphi, Python and Ruby, but as far as I can see there 
is little, or no, commonality of approach or functionality amongst these 
offerings.  This means that a programmer (a) has to decide which of 
these widely varying approaches to adopt, (b) only gets whatever 
documentation each chooses to provide and (c) is faced with a complete 
rewrite, should they decide to switch RDF platform.

Might this situation be a significant factor in the slow take-up of RDF 
by mainstream developers?

Richard

[1] http://www.w3.org/TR/REC-DOM-Level-1/introduction.html

-- 
*Richard Light*