Particle’s developers are the first to release a cryptocurrency wallet that is not based upon the bitcoin-qt client. The new Particle wallet is codenamed “BitFreezer” and developers claim this will offer “an incredible user experience” through the use of it’s improved design and user interface.
This advanced wallet brings is the ability to add plugins so that anyone can add different tabs and functions to the User Interface (UI)
Our wallet is created on the .NET Framework and is cross platform with the open source Mono project…. Our wallet is “extensible”. This means it can be extended by the community to add new features directly in the wallet… [similar] to Firefox plugins or apps for the iPad. Community developers and hobbyists can create plugins that are loadable by the wallet to expand the feature set.
You can access download links and more information on Particle on the Bitcointalk forums.