Access SharePoint from your Windows Phone. Fast and free you can download it from the Windows Phone Store now.
JSOM Fiddle - SharePoint
can be executed directly against the SharePoint site. Providing quick prototyping and immediate results.
Available soon in the SharePoint App Store.
AgilisExpenses - SharePoint
AgilisExpenses is a SharePoint App which provides management for your employee expenses.
Expenses are submitted added, submitted, approved and then paid.
Lots of options and configurations means you can taylor it to suit your needs.