The massive influx of staff comes in the form of former CEO of Ludosity Interactive, Daniel Kaplan, who will serve as the game's business developer and "the other secret guy with the game idea we're going to make."
Ludosity was responsible for the 2009 game Bob Came in Pieces and Kaplan's addition to the team will allow former solitary developer Markus "Notch" Persson to focus primarily on building the game.
The team is forming a company, Mojang Specifications, which is accepting job applications for those currently living in Sweden. Minecraft is currently in the alpha stages, but access to the current version can be had for 9.95 EUR (around $13) via Minecraft.net.
If you're interested in checking out Minecraft with some Shacknews community members, you can check out one of the numerous threads raging about the game almost every day. Here's a good one to start with.