Today Google updated their Google Voice app for both Android and Blackberry devices to reduce the amount of time it takes to dial a contact using Google Voice. According to their blog post, “When you want to make a call, your phone should connect you as quickly as possible, whether you’re calling via Google Voice or not.”

Today’s enhancement to the Google Voice mobile app will make placing calls “much faster” using something they call “direct access numbers.” Here’s how it works:

“Until today, the Google Voice app had to make a request to the Google Voice server every time you wanted to make a call to send us the phone number you wanted to dial. Then the call would be connected via a Google Voice access number. With direct access numbers, we assign a unique phone number to every person you call. This means that we no longer need to use your data network to access the server each time you make a call, so calls will be placed much faster.”

The potential here is that every person could get assigned a Google Voice phone number without ever having signed up for Google Voice at all. This could introduce all kinds of benefits and help accelerate the adoption of having a universal phone number that grows and adapts with you to a much larger audience. Still absent, however, is LNP (being able to port your pre-existing phone number to Google Voice), and VoIP via the app.

The updated Android app is available from Android Market now. For Blackberry users, you can download the app by visiting http://m.google.com/voice from your mobile device.