Office Web Apps is a great way to access your documents from almost anywhere on almost any device. It also provides a brilliant tool for groups of people to view and edit documents at the same time, removing the need to email back and forth multiple versions of an Excel spreadsheet for example. Everyone can see the most up to date version regardless of their location. The link below contains a video to show how easy it is to use Office Web Apps on the go.
http://www.microsoft.com/office/RM/ExcelWebApp.aspx?WT.mc_id=AO_enus_eml_excelwebapp
The remote access capabilities that SharePoint Server 2010 and Office Web Apps provide are also of great benefit within educational institutions. From the case study (link below) Herrity says, “Students can connect to resources instantly and easily. Office Web Apps help students accomplish more. They can access applications through the browser, without needing software installed on their home machines. This removes many socio-economic issues.” Now, it does not matter whether students have the latest version of Microsoft Office installed on their home computers. Through the learning gateway, students can quickly and easily make changes within the browser based Office Web Apps, which are covered by the school’s licensing.
http://www.microsoft.com/casestudies/Case_Study_Detail.aspx?CaseStudyID=4000007260