Three researchers in Germany at the University of Ulm have discovered a massive security hole in Android – so big, in fact, that it affects at least 97%, and as many as 99%, of all Android users. The researchers, Bastian Könings, Jens Nickels, and Florian Schaub, have discovered that the security flaw allows anyone who is sniffing around your connection on an unsecured wireless network to acquire your Google authorization credentials from a specific token (the authToken), giving them access to your contacts, your calendar and, well – really any application that authenticates you by using your Google authorization credentials contained within that authToken.

We were as excited as anyone (and probably more excited than many!) to learn about the new Tmobile Sidekick 4G, and to get going on a Sidekick 4G review! So we rushed down to the T-Mobile store and got an inside preview of the new T Mobile Sidekick 4G, the first touchscreen Sidekick ever. The new Android Sidekick 4G from T-Mobile promises to be everything great in the Sidekick line, enhanced with the great Android OS, the touch screen, and front and rear-facing cameras!. So read on about the all new for 2011 Sidekick 4G!

One of the most frustrating things about the Tmobile G2 – an otherwise fantastic smartphone – is the lack of any settings to control the keyboard backlight: you can’t have your keyboard backlight always on, even if you want to. The light sensor that controls the keyboard back light on the G2 is crazy-sensitive to ambient light, and so one often finds oneself trying to type blind, because the keys are not lit up, and it’s too dark to easily see the keyboard. If you want to keep your keyboard backlight on permanently, well, there is no setting to do that. But there is a way to do it, and we tell you how (with pictures!) First you need to know exactly where is the G2 light sensor.

If you’ve noticed that your email seems to be acting funky lately, such as that replies from people to whom you have sent email aren’t showing up where they should, or that people aren’t getting email that you send from your Android phone, the culprit could well be that your Android phone is no longer using your default “From” address (your “send mail as” address) that you have set in Gmail. Thanks to an issue with the latest Android update, Android phones are not longer honoring your selection of default From address, and are instead defaulting to using your Gmail account email address.

The Google Book Store or, perhaps more accurately, the Google eBook Store, was officially launched today. The store, stocked with at least 3 million books, allows you to download Google books from the Google eBookstore to your iPhone, iPad, iPod Touch, Android phone or device, the Sony Reader, and even the Barnes and Noble Nook, as well as to read Google eBooks with your browser.

If you’ve been wondering how to take a screenshot on an Android phone, wonder no more! You can do it, and you don’t have to root your phone to do it! Here’s how to capture a screenshot on an Android phone.

Believe it or not, it’s extremely easy to create custom notifications, alarms, and ringtones on the T-Mobile G1 Google phone! And doing it this way will allow your own custom sound files to show up in the same list as the pre-installed sounds!