There have been quite a few rumors about a possible takeover of Canadian high-tech star Research In Motion (Nasdaq:RIMM).  RIM, the makers of the popular Blackberry device, has been rumored to be taken, due to the success of the product, which has reached an impressive installed base of over 2 million users.  In a Goldman Sachs report, RIM was called "a very attractive acquisition", with possible suitors such as Nokia or Motorola being mentioned.  The new Blackberry 7100 series is being regarded as one of the key catalysts for growth this year, because of its form factor (looks more like a cell phone, it is slim, has a color display and only weighs 122 grams).  RIM has been relying on licensing its software to rival hardware makers in order to compete against the likes of Extended Systems or Good Technology.  Goldman believes RIM will be able to add between 20 to 30 new carrier customers this year.