There is no need to install a cab file. The program it loads will only take up space. Samsung Today 2 is already on our phones, it's just hidden so you can't use it. Import the Samsung Today 2 reg edit file (or perform the explained reg edit) from the post below, do a soft reset, and Today 2 will be an available option on your today menu. No need to waste space on your device.
http://forum.ppcgeeks.com/showthread.php?t=51532
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