Yummy

oneDrum was acquired by Yummer for online PowerPoint collaboration

oneDrum is a free, lightweight desktop application that can turn any application into a rich, collaborative environment and allows users to┬ácollaborating in Microsoft Office documents. oneDrum enables you to┬ásimultaneous edit Office documents including PowerPoint files, Excel and Word, enabling a multi-author document creation and editing. This is a great alternative for online collaboration and effective …