The people spoke and BOB listened...sort of.
The biggest complaint about the old car seat stroller adapter is that it didn't "officially" work with any Chicco car seat models. In 2011, BOB introduced a new line of strollers as well as a Chicco specific adapter. Hooray!
Except and here's the fine print: it doesn't work with any other strollers except the new 2011 models.
So if you have an old BOB stroller, even if, like mine, it's 3 months old, this new car seat adapter WILL NOT WORK with your stroller. I only know this because ours came in the mail today and my husband tried, unsuccessfully, to install it. It says it works with strollers with an "accessory adapter." Note that this is not the same part that you can attach a snack tray or an older car seat adapter to. It's a new design on the new 2011 strollers. So we'll have to send it back and settle for the older model that doesn't "officially" work with Chicco (but all the reviews says it works just fine.)...