Let’s annotate just released their iPad version for real-time collaboration for PDFs. The service is still in alpha and takes full advantage of the iPad’s HTML5 capabilities. The app practially runs within the iPads browser and also let’s you make use of native iPad elements such as multi-touch.
The iPad version was built upon their existing Web application, that comes in three different pricing models depending on the number of collaborators and storage space. It’s also fully built with HTML5 and aims to take out the hassle of sending large junks of PDFs over the web. Sounds familiar? Indeed there are various apps out there, most notably Scribd, Issuu or Google Docs.
