Bitcoins are a virtual currency that was created in 2009 by Satoshi Nakamoto. Bitcoin is also the name of the open source software that Nakamoto designed to use the currency. Bitcoin is also the P2P network that was formed to run the software.

Color.com is a location photo- and video-based sharing social networking company. Color.com raised $41 million in Series A, but they failed to gain much traction since launching and raising so much. To make matters worse for the company, Color.com co-founder Peter Pham is believed to have quit. [TechCrunch]

Internet radio company Pandora Media Inc (NYSE:P) has gone public today. Pandora priced their shares at $16. Pandora opened at $20 and jumped to $26. This is an increase of over 60%.

Acer Incorporated (TPE:2353) has cut their 2011 shipment target for tablets by about 60%. They are also expected to lower notebook shipments. Acer missed their last 3 quarterly forecasts and recently they saw their former CEO Gianfranco Lanci step down in March.

Specifications of the next Google Inc. (NASDAQ:GOOG) Nexus 4G smartphone have leaked. The next version of the Google Nexus 4G smartphone will have a next-generation dual-core 1.2GHz (or 1.5GHz CPU). It will have an NVIDIA Kal-El processor. Sources with BGR indicate that the processor is most likely an OMAP 4460 or an ultra low-power 28nm Krait-based Snapdragon. The display is believed to be 720p HD. Other specs include 4G LTE radio, 1GB RAM, 1080p HD video capture, 1 megapixel front-facing camera, and 5 megapixel rear camera. The next Google Nexus 4G will run on Android 4.0 (Ice Cream). [BGR]

Social networking company Facebook.com is working on adjusting their iPhone application to make photos look more appealing. Facebook receives about 6 billion photo uploads per month and has about 100 billion photos total. A screenshot of the new Facebook app was sent to TechCrunch. The app is currently being tested internally with the name “Hovertown” or “WithPeople.” [TechCrunch]

Comcast and Skype have announced a partnership. Comcast will allow their customers to communicate with friends and family through Skype HD video calling through the TV. Comcast will be able to use Skype video calling from their living rooms. When using the HD camera, XFINITY service, and broadband connection, Comcast customers will be able to Skype through their TV. Below is the press release:

Apple Inc. (NASDAQ:AAPL) has started selling an unlocked version of the GSM iPhone 4 in the U.S. for $649. Both the white and black iPhone 4 smartphones are available for purchase unlocked. The 16GB and 32GB versions cost $649 and $749 respectively. The unlocked versions are not available for international shipping.