Don't be so paranoid.
I've flown cross country and to USVI with a mobile phone, PDA and adapter cable, GPS receiver, suction cup windshield mount, cigarette lighter plug, and wall power adapter in my carry-on, and it never gets a second glance. About 8 pounds of wire, plastic,and batteries. My laptop case gets packed with PCMCIA ethernet and wireless cards, 6' of CAT5 cable, a mini-USB hub, an AC and a DC power adapter. The laptop gets a wipe down for the explosives sniffer, or a power-on check, and that's it.
If checked luggage is opened, and it's clear what a device is, and it's not restricted, at MOST it will get a wipe-down for the sniffer, or an x-ray, to make sure it doesn't contain explosives. The biggest headache for the TSA is people who insist on wrapping gifts, then checking them. TSA will open the wrapping.
--Gene