Having spent a few days climbing in the Ecrins, i've posted an update on current conditions on my blog http://roebuckmountaineering.co.uk/blog/ with specific focus on the Glacier Blanc and Barre Des Ecrins area and Mont Pelvoux.
Take a look if your heading out to the area for up to date info.
In reply to OwenF: It's pretty difficult to get accurate info in the valleys. The hut guardians can give good info and there is a Maison de la Montagne in Ailefroide. Or you could try the CAF in Briancon.
In reply to Eddie1234: Lower down the valley, there's a Maison des Guides in Vallouise on the main valley road. They publish a detailed daily meteo. If you're interested in popular routes, you can easily find out if they're in nick by checking whether they're taking guided parties up.
In reply to Eddie1234: I have spent the last week in Les Ecrins and plan on returning there tomorrow for another weeks mountaineering. Snow conditions were good on the mountaineering routes we were on. Photos and more details can be seen on the ClimbNow.co.uk blog.