In a pouch, in my left pocket. Without anything else in that pocket: keys are in the other pocket, along with my wallet (when it's not in my messenger bag)
This is me. Phone in left side; keys, knife, and wallet in the other.
Mine rides alone in my left-front jeans pocket, because I haven't yet found a belt case suitable for the Mugenized N900. If I could, definitely belt case.
In case you doubt that I would put it on my belt, or think that I'm socially acceptable until I find one, here's the rest of my loadout: (Not that anyone really cares, but someone will probably get a good derisive chuckle out of it. )
Right front:
Loose money
Gerber multitool (uber-cheap chinese model, for abuse; bottom of pocket)
3.5" liner-lock (clipped in top of pocket)
Right hip:
Money (stack of $20 notes)
Wallet
4" crescent wrench
Gerber or low-end SOG multitool (for dual-wielding as secondary to S61)
Left hip:
1 or 2 single-cell AAA/10440 flashlights w/ lanyards
This is where I typically stuff any random items I need to carry.
Belt:
2:00 -- 3" frame-lock (in waistband)
2:30 -- Mini RollyPoly dump pouch, this can hold a 32oz./1l beverage
3:00 -- Keys (on carabiner)
3:30 -- 1x18650/2xCR123 flashlight
8:30 -- SOG S61 (primary multitool)
9:30 -- Mini Maglite (well, it started that way -- a bit of a hotrod, uses the LED module from a 3D Mag)
Okay, so like what do you do for a living? Are you MacGuyver's mechanic?
The N900 is a brick, and with such heft and build toughness makes it not require a case just a screen protector and in the pocket ... quite simple really.
Somewhere between a, b and d - either in a soft pouch hanging from a belt loop (the only usable choice if I happen to have jeans with only two useful pockets), in the front left pocket with nothing else when need quick access and no much danger of dropping, or in a cargo pocket with a zipper. Usually have trousers with cargo pockets so any of those apply, depending on the situation and other things I have to carry.
No screen protector; phones are consumables paid by the employer (well I try to keep it safe without keys in the same pocket:) When my N900 will eventually retire change the role from the current everyday carry-around thingy to a general household server/robot controller/whatever, won't matter if there are a few scratches.
Similar setup here, but with less knives and more tools of the trade instead. Like my netbook. Yes, there are pants out there with pockets large enough to hold a netbook - and I own them all!
I have my N900 savely wrapped up in my silicon case, so I can actually put it wherever there's enough space left without risking a scratched case or screen (God forbid!). Most of the time it's in the upper most right front pocket, though, unless that's clogged with various flash drives and external HDs again.
Can I please see some pictures of these setups, please
)