If you feel like accepting push request and it’s not too complicated to get running environment for newblur, I can try and implement this by myself. This will test my motivation
I use another tool, read-it-later-like named Poche (means Pocket in french)
=> http://www.inthepoche.com/
I would be great from you to implement these tools as sharing services in Newsblur : it would avoid to me to open links in Safari and then use bookmarklets