Yesterday, after Bryan Person pointed out that there were some problems with it, I removed the FriendsRoll block from my site. Steve, one of the developers at 76design, whipped into action and released a corrected v1.2 beta.
My FriendsRoll block is back online.

There has been a growing trend of online services designed to build social networks in centralized and sometimes closed environments. While there are merits to this approach, the abundance of options is crippling and confusing. Invariably, everyone must join every site and we’re left chasing each other around. This has created an artificial sense of centralization in a decidedly decentralized environment.