JC:
The initial question has been answered re:specific or generic. As to the camera mounting methodology for a monopod (and I believe that was the real original question) there are plenty of options (and opinions.) Pretty much accepted is you don't need a ball head on a monopod (see article)
Jeffrey Friedl’s Blog Blog Archive My New Monopod
A lower cost option to the setup Mr. Friedl ended up with is to use the Manfrotto 3229 quick release head and forgo the RRS Arca-Swiss style release; I use one on my Feisol and it's effective, but I don't trust the QR function 100% (see text down the page). However, if you want ultimate interchangabiliy (e.g., multiple tripods, monopod, heads) you should decide on which standard you want (Arca-Swiss is more universal, Bogen/Manfrotto proprietary, etc.) That said, and to reflect on your initial questions regarding the grip, here is a note I received from a friend (who I recommended a Markin M10 to because the Wimberly sidekick he bought won't mount to a non-Arca-Swiss release) ". . . I did end buying a Markins M10 and love it. When I was in Arizona I had my D300 on the Manfrotto (grip) and was moving my tripod. Now, every time I put it on, I make sure that the unit is locked and tight. Well, I heard a ‘click’ and the quick release plate did just that – but fortunately I had one hand on the strap as well – saving the D300. Last year the same thing happened with my D200 and my prized 70-200 VR lens – my reflexes caught it before it slammed into the pavement. So, not wanting to try for a third time – I sold it (the Manfrotto grip) and all the plates . . . "
And one on ball heads if you are so inclined (recommended reading)
Update: Pro Ball Head Review - compares ball heads to give sharper photos & solid video support
. . . and if you are looking to replace the monopod too
Some musings on monopods - Open Photography Forums
Lots of information and opinions available on the net; it comes down to need, affordability, and personal preference. Good luck.