The latest version of the Google+ app for iPhone introduced instant photo uploads, a nice feature which was previously available only to Android users. Instant Upload will automatically send your photos and videos to a private Google+ album, from where you can pick which ones you’ll share with the world.
The updated Google+ iOS app is now available in the App Store. After you install the update and log in, the app will ask you whether you want to enable Instant Upload, either via Wi-Fi only, or via 3G when available. Note that any photos and videos taken with the iOS camera app or third-party apps like Instagram are uploaded to a private folder on your Google+ profile.
There’s a 1GB limit for photos and videos from Instant Upload. However, if you shoot photos at resolutions lower than 2048 by 2048 pixels (iPhone 4 and 4S notwithstanding) and videos under 15 minutes, automatic uploads to Picasa albums are virtually unlimited.