Yeah we've heard about this, and I have to say it's a blatant NO if it applies to PC, as we're surely capable of striking our foes where we want.
It might be good for consoles as aiming appears to be harder, but it shouldn't be too strong.
It's also given rise to other questions and inquiries, such as if arrows fired from bows would apply to this rule of Magnetism, or if it then becomes impossible to hack down an ally if an enemy is nearby.
For example, an arrow might target an enemy due to this Magnetism, but when the enemy moves the arrow will miss because it targeted the enemy itself rather than where you might have anticipated he may have moved yourself.
If that makes sense. :S
It might sound somewhat strange, but I actually think that the magnet system could open up possibilities for sophistication in the combat system. To be honest, I found that the combat in Morrowind and Oblivion was very bland even if I was allowed to target my weapons at whatever I wanted. There was practically no strategy involved beyond simple hit and run tactics, and everything was very 'gut' oriented. In summary, I never actually felt like my character was getting any better at combat as the game progressed, because I still attacked in the same slow and relatively clumsy fashion.
Note that combat in Skyrim is supposed to be lethal, in contrast to the swing-fest that characterized combat in Morrowind and Oblivion. It could be very frustrating for players if Bethesda implemented a "western duel' style of combat, in which the first person to land an attack gets a permanent advantage as the target of the abuse is constantly pummeled beyond hope of retaliation. Maybe the 'magnet' system is a symptom of a more sophisticated combat system that involves more strategy and, ultimately, player interaction.