Go to Help Contents with your Social Edition designer client and enter '@Member' into the search box. The old, familiar, formula language reference is the 15th entry on the third page! And why did I notice this? I use Help all the time. I mean, does the value or stringlist come first? Depends on the function. And whats the difference between @IsMember and @Member? If I had to remember all this, I might not have room to remember my wife's cell phone number, which is pretty important.
So have you noticed the reformatting of the help file? It looks like a lot of work went into this, but I wish they spent more time improving the run time error handling engine. I mean, really - "Object variable not set"? Can you please tell me what variable? And they same for "Type mismatch". Although I do this so often I tend to find this pretty quickly. And here is where the help files could be improved - the examples are too simplified. They use constants in a lot of places where real developers might use a variable.
And I know everyone is focusing on xPages, but I still work with a lot of clients that have traditional Notes apps, and need to have small changes or even big fixes. So, I still use help on a regular basis so I appreciate any changes, and keep them coming.