it is cheaper to buy a metal lathe and milling machine, that can make a better 'gun', than the mid/high level 3D printer required to build a safe plastic gun. It's all hype!!!

behind the pillows on the sofa, with the car keys and small change.

the only tool here is the person who goes out of way to set up a Linux box and WiFi point to track people. If you consider that the average WiFi has to be reasonably close to the target, then you must already have some general idea about where the target is, a lot of trouble for almost nothing.

only in black?

a single person complained and took the action. Not a popular decision.

battery life is too good.

Grammar Nazi correction.
It's too complex for the Joe Average

I am convinced that 3D printing is a niche market, I would say that until 3D file generation become as easy as operating a camera, point and shoot, most people will ignore 3D printing. It has been shown that people would like one or two 3D printed items, but why have a printer to print items that are cheaper off the shelf, or fill rubbish bins with failed prints from under powered computers, poor 3D modelling, or corrupt files?

People assemble 3D objects all of the time, they don't need a printer, they have hammer and nails, file and drills, knives and scissors, they don't need a printer. That's part of the issue, we think that a 3D printer opens a new world, and in some areas it may, but many areas are already covered by artisan crafts.

Besides, who wants the smell of ABS drifting through the house? (my Makibot is on order, for printing custom buttons for my wife)

from central Australia,

Traceroute has started

traceroute to 216.34.181.45 (216.34.181.45), 64 hops max, 72 byte packets
  1 192.168.2.1 (192.168.2.1) 4.194 ms 1.014 ms 0.934 ms
  2 172.18.113.11 (172.18.113.11) 83.862 ms 84.860 ms 84.353 ms
  3 172.18.72.94 (172.18.72.94) 83.992 ms 84.259 ms
        172.18.72.46 (172.18.72.46) 84.745 ms
  4 172.18.242.233 (172.18.242.233) 94.024 ms 94.449 ms 95.365 ms
  5 bundle-ether10.fli10.adelaide.telstra.net (110.142.226.245) 96.089 ms 92.967 ms 95.718 ms
  6 bundle-ether4.fli-core1.adelaide.telstra.net (203.50.11.87) 85.992 ms 84.363 ms 88.423 ms
  7 bundle-ether9.win-core1.melbourne.telstra.net (203.50.11.91) 99.213 ms 96.630 ms 95.801 ms
  8 bundle-ether12.ken-core4.sydney.telstra.net (203.50.11.12) 134.830 ms 107.733 ms 111.494 ms
  9 bundle-ether1.pad-gw2.sydney.telstra.net (203.50.6.29) 113.033 ms 124.194 ms 114.659 ms
10 tengigabitethernet1-0.sydp-core02.sydney.reach.com (203.50.13.46) 107.287 ms 108.560 ms 109.673 ms
11 i-0-3-0-4.paix-core01.bx.telstraglobal.net (202.84.140.157) 357.916 ms 322.883 ms 408.986 ms
12 i-0-0-0-5.paix02.bi.telstraglobal.net (202.84.251.18) 307.253 ms 323.265 ms 305.993 ms
13 206.24.240.149 (206.24.240.149) 321.531 ms 377.552 ms
        205.216.164.9 (205.216.164.9) 308.113 ms
14 cr2-tengig-0-7-0-0.chicago.savvis.net (204.70.196.246) 419.261 ms
        cr1-ten-0-7-3-0.sfo.savvis.net (204.70.195.102) 408.027 ms
        cr2-tengig-0-7-0-0.chicago.savvis.net (204.70.196.246) 394.863 ms
15 cr2-tengig-0-0-2-0.chicago.savvis.net (204.70.196.242) 408.644 ms
        hr2-tengigabitethernet-12-1.elkgrovech3.savvis.net (204.70.195.122) 409.098 ms *
16 das6-v3036.ch3.savvis.net (64.37.207.174) 409.422 ms
        hr2-tengigabitethernet-12-1.elkgrovech3.savvis.net (204.70.195.122) 614.129 ms
        das6-v3036.ch3.savvis.net (64.37.207.174) 408.676 ms
17 das6-v3036.ch3.savvis.net (64.37.207.174) 408.917 ms
        64.27.160.198 (64.27.160.198) 408.514 ms
        das6-v3036.ch3.savvis.net (64.37.207.174) 527.134 ms
18 slashdot.org (216.34.181.45) 379.201 ms
        64.27.160.198 (64.27.160.198) 377.103 ms
        slashdot.org (216.34.181.45) 409.978 ms

64 bytes from 216.34.181.45: icmp_seq=0 ttl=236 time=502.941 ms
64 bytes from 216.34.181.45: icmp_seq=1 ttl=236 time=317.771 ms
64 bytes from 216.34.181.45: icmp_seq=2 ttl=236 time=447.329 ms

Just too many hops (not as in Beer)

anchored inplace while climbing a slippery slope, sounds like most gamers. I hope it works, but the price will doom it to niche markets.

Use similar electronics but transmit the sound via a Bluetooth ear piece. 2D and 3D G-force sensors make the idea simple. First one to the patent office wins the prize!

Set up a thin client for guests, then they will not ask for computer access again.

Text based games. The quake server sounds good too.

A cunning plan...