Camera+'s 3.0 update releases today on March 14th, and with it comes many new features, most important of which is the introduction of new APIs to integrate Camera+ features anywhere. For users, a widget to easily share Camera+ features is available and testable from here, allowing users to display their shared photos on their personal spaces.
Developers can also integrate Camera+ access in their app. For example, it's now possible to take a photo using Camera+ in Tweetbot, preaparing and editing it there before sharing it with the world, or to easily edit already-taken photos in Camera+ before sharing them with the world. The apps supporting these new Camera+ 3.0 APIs at launch include Tweetbot, WordPress, Foodspotting, Twittelator Neue, and Twitteriffic. Interested developers can read the documentation and download the necessary files from here.
As for the app itself, now it is easier to work in multiples: namely, multiple photos can be imported from the Camera Roll at once, and sharing to multiple services at once is now possible. The free update is available now.