The 1.2 version of CallWave for Mac is provided as a free download on our website. This free Mac app is an intellectual property of Callwave. CallWave for Mac is included in System Tools.
From the developer:
CallWave 's Widgets bring handy communication tools right to your fingertips in a variety of personalized frameworks.See and hear your mobile voicemail from your computer. Works with most US carriers.Text virtually anyone, anywhere from your computer straight to their mobile phone.
You may want to check out more Mac applications, such as Calendar Clock, Widget Center or iPhotoMini, which might be similar to CallWave.