Byte2 has released an update adding PowerPoint editing to Office2 HD for the iPad. Office2 HD allows users to edit Microsoft Word, Excel and now PowerPoint documents on their iPad. Files can be accessed from and saved to popular online services such as Dropbox, iDisk, Google Docs and more or transferred directly into the app over a local Wi-Fi connection or opened from other supported apps. Documents, presentations and spreadsheets can also be exported…