1. You just got followed on Twitter and you just got an email from Twitter. You want to examine the follower, whose name is on the given email. Click on the follower's name to get his or her profile will bring you up the browsers and the Twitter login. You can by pass that, and the link will head straight to the Twitter app itself, opening the follower's profile with the app. It does not work with all Twitter apps, but it works with Twicca and Twidroyd. 2. You are using a Google Reader like the official one from Google. You share a link to a Twitter app. All you see is the compressed link and you have to fill the rest for it. On one hand, some Twitter apps do accept the "Gmail format" for sharing and will display the full title and source attribution, making it easier to tweet. These following apps do it: Touiteur, Seesmic. 3. With a geotagged tweet, some apps show a mini Google Maps display within the app, like iPhone apps do. These include Tweetdeck and Twitter for Android. Other apps will open the full Google Maps directly in all its glory, such as Twicca and Twidroyd.