Cloud storage service Box launched two new apps today: one is a tablet-optimized Android app that will replace the company’s old one and scale the view based on a user’s device, and the second is a PlayBook app–the first BlackBerry to have access to the service. Box also rolled out a new HTML5 mobile site.

The reasoning behind all of this has to do with mobile adoption in the enterprise. Considering just how big collaboration and sharing software is in this market–and that it’s Box’s target audience–this roll out represents new doors opening up for the service. The company is looking to continue and capitalize on a booming demand its own sales figures confirm.

From ReadWriteWeb:

“More interesting than the actual app announcements, Box CEO Aaron Levie revealed that the company has seen a 600% increase in enterprise sales regarding mobile. And yes, that’s specifically enterprise sales, not overall sales. For example, Proctor and Gamble just became a Box customer based largely on the company’s mobile support.”

Box is certainly not the only service of its kind (there’s SugarSync, Dropbox, and iCloud to name a few) and it’s not the only one expanding via mobile. This latest update is a significant push towards strengthening its position in this space.

Box has a lot of competition to handle,  especially as one of the strongest players in the personal cloud storage market. The company took the no. 1 spot in a Forrester list naming 15 leaders in mobile collaboration. Traditional players such as Cisco and IBM were among the ones behind Box, along with Google, Dropbox and Sugarsync.

SugarSync is one of Box’s main competitors, and entered into an agreement with Lenovo to make the service a default program on its  Simple Tap-branded PCs.