The Android app catches up to iPhone version with bulk upload feature Cloud storage company Dropbox has added offline storage and bulk upload to an redesigned version of its Android application, which has been optimized for Android 4.0.The favorites feature in version 2.0 allows users to make files available offline by clicking on a star in the menu, while the bulk upload means users no longer need to upload files one at a time. Instead they can select multiple photos and videos and upload them in the background, Dropbox said in a blog post on Thursday.[ Learn about consumerization of IT in person March 4-6, 2012, at IDG’s CITE conference in San Francisco. | Get expert advice about planning and implementing your BYOD strategy with InfoWorld’s 29-page “Mobile and BYOD Deep Dive” PDF special report. | Keep up on key mobile developments and insights with the Mobilize newsletter. ] The bulk upload feature is already available in the iOS version, and is something users have been asking for on Android Market.Users can also rename files and folders. Additionally, the company has improved the gallery view, and made a numerous bug fixes and stability improvements, it said.Cloud storage has become one of the hottest smartphone application sectors, with a growing number of applications to choose from, including Amazon’s Cloud Drive, Apple’s iCloud, Box.net and Microsoft’s SkyDrive. One way vendors are trying to lure users is by increasing the amount of free storage. For example, SkyDrive comes with 25GB of storage and recently Sony Ericsson signed a deal with Box.net, which gives owners of its smartphones access to 50GB of free storage, while Dropbox only includes 2GB.Also, more large software vendors are looking at entering the sector. In October, Citrix Systems acquired ShareFile for an undisclosed sum, in an effort to break into the cloud-based data sharing market.Send news tips and comments to mikael_ricknas@idg.com. Technology Industry