LinkedIn responded to me placing them on The Official Meta Lockin Shame & Short-term Solution List within a couple of hours letting us know they *just* added export to all their contact pages (plus VCARDs). Of course, they were working on this, but I think that this shows two things:
1. Users should be very, very vocal with web services companies (including us!).
2. Web 2.0 companies listen to user feedback obsessively (I have no idea how they found out about the post, but I’m guess one of my readers emailed them or they are rocking out a technorati/pubsub alert).
Nice job LinkedIn!