The new version of iPhone OS 4.0 beta 3 update SDK was released today for registered developers.
The iPhone OS 4 SDK offers bug fixes. New features include file sharing between the desktop and iPhone via iTunes, iPod media player widgets, minimal multitasking and a screen orientation lock.
The update adds spellcheck/word replacement options
The new organization tool is folders for holding information. Email
features include a unified inbox fro switching between inboxes,
organizing messages by threads, and opening attachments in 3rd party
iPhone OS4 includes iBooks to browse, buy, and read books on a mobile
device. Users can read books while listening tor music collection.
Books can be browsed by title, author, or genre.
Advertisers can opt for media-rich iAds, a potential source of
revenue for developers.
Developers are given more access to edit events in the Calendar and
create SMS messages. Developers can develop apps that for photos and