Eeeks. Its actually supposed to be damage Str+3, not +2 (which is the same as what a sword deals). The idea is that it does a little more base damage than a combat knife, and has a better reach, but it doesn't penetrate armor as well, isn't as accurate, and can't be hidden as well.
I respectfully disagree on the price suggestion. A sword has 1 more point of accuracy. basically, when comparing the tomahawk to the sword, you are giving up 1 point of accuracy in favor of a throwing range. Meanwhile, let's compare to the combat knife. You can throw a combat knife (thought at knife distance, not throwing knife/shuriken distance). It would be two steps easier to conceal then this tomahawk (-2 instead of 0 or +2). Its damage is one lower, but its AP is one higher. Its reach is one lower, but its accuracy is 1 higher. All in all, they are very close, with the tomahawk having a slight advantage. The combat knife costs 300 nuyen. The tomahawk costs 500 nuyen.
Also, lets keep in mind, it has the range of a throwing knife. It does not, however, have the wireless property. You also cannot ready three tomahawks with a single swift action.
700 nuyen seems overpriced to me. Maybe I am wrong though.