Build Office and SharePoint 2013 apps
Microsoft just presented a HUGE opportunity for Office and
SharePoint developers. Now they can build apps and even sell them on the office
store.
Yes, that's correct.
All you can try online for now.
The fastest, easiest way to get started creating any kind of app for Office or SharePoint, is to sign up for Office 365 for developers. This customized Office 365 subscription includes all the tools and resources you need to start building and testing apps right now:
SharePoint Online developer site, customized for creating and testing apps
"Napa" Office 365 Development Tools, to create your first apps right within the browser
Office Professional Plus 2013 Preview
Exchange Online 2013 server
Check out Start
building your Office and SharePoint apps here >>