Twitter on Wednesday announced two new mobile features for its Android and iOS apps: photo tagging and multiple photos in a tweet. You can download the new version now directly from Google Play and Apple’s App Store. The first feature allows you to tag up to 10 people in a photo. Best of all, tagging doesn’t affect character count in the tweet: regardless of how many people you tag, you still have all 140 characters at your disposal. If you get tagged in a photo, Twitter will send you a notification. As expected, you can adjust notifications, as well as who can tag you, in the service’s Settings section. The second feature lets you share a series of photos in an automatic collage. Twitter says the ability to upload multiple photos is starting to roll out today on iPhone, and is “coming soon” to Android and twitter.com.