Reading the Manta website, I can't help but be reminded of this webcomic: http://rbxbx.info/images/fault-tolerance.png
I.e. Manta seems to emphasize the ability to use existing tools in a distributed fashion, rather than forcing you to learn a new language with unfamiliar syntax.
OMG A DATABSAE THINGIE! IMMA POST THE COMIC WHAT SAYS THE CURSE WORD!