just had a reply from the Ceramics & Glass Collections Dept. at the V. & A. ............and I did ask for permission to quote verbatim, but this may not happen as they decline to discuss the nature of their replies, normally, so I will just give a synopsis of their response. Their reply indicates that so far only a small part of the glass collection has been photographed. It would appear that, whilst they want the entire collection available for on line viewing, a continuation of this project is heavily reliant on resources/funds, and currently this is very much subject to museum priorities. Being the glass and ceramics department, they informed me that during the course of 2010, they completed a programme of photographing something like 30,000 pieces (of ceramics) - I assume these are available on line, but don't really know. In a similar way to the ceramics, it is the department's hope that they are able to finish photographing the glass, as and when they can find the resources to do so.
Haven't a clue as to the overall size of the glass collection, imagine it's very substantial - don't know if it is the largest within the UK, or not - but project obviously on hold for the time being.