> > I did find an official list of features for the iPhone os 4.0. It's not from > apple but it is a legitimate source which has taken the list from the > developper application. > It does include bluetooth braille display support. See below. > Full List Of Features: > > Double-tap home to switch apps. > Long press on an app to quit. > Camera: Tap to show digital zoom bar (5x). > Photos: Sort by places, faces, events, albums. > iPod: Create new playlists. > Displays a character counter in SMS. > Search MMS & SMS. > Threaded mail messages. > Unified mail inbox. > Support for multiple Microsoft Exchange accounts. > Data encryption for apps/email/attachments in enterprise. > Wireless configuration (Enterprise). > Wireless app distribution (Enterprise). > SSL VPN (Enterprise). > Customize wallpaper. > Create a calendar event from text. > Gifting apps in the App Store. > Support for Bluetooth Braille devices. > Display larger text for Alerts, Calendar, Contacts, Mail, Messages and Notes. > Create folders that hold 12 apps. > Live suggestions in Safari’s search bar. > Web search directly in Spotlight. > iAds. > Game Center social network. > Resize images in outgoing emails. > Photo rotation in Photos. > Over-the-air syncing for iBooks on iPhone & iPod Touch & iPad. > Open attachments with any compatible app. > File and delete mail from search results. > Support for Bluetooth keyboards. > Support for CalDav event invites. > Universal spell check. > Tap to focus while recording video. > iPod line out. > Access the calendar to create events in-app. > In-app SMS messaging. > Third part apps have access to photo libraries. > Quick look for previewing attachments. > Apps have access to video playback and capture. > Local notifications. > IMAP & MobileMe note syncing. > New Calculator icon. > Automated app testing. > Photo geotagging. > Active GPS shows arrow in menu bar. > Privacy controls for location-aware apps. > Persistent wifi. > Power analysis tools. > Half-curl page transition. > Map overlays. > Nested playlists. > New dock. > Birthdays in Calendar. > Word or number passcode lock. > Wake on wireless. > Cell data only setting. > Recent web searches in Safari search box. > Top hit in Safari search box. > Upload workouts to Nike+. > Edit email from the outbox. > -- Marcy Hope you're having a nice day!