I looked at the shewee and gogirl and they both seem very simplistic in design and very functional (mostly due to the fact that both have wide-mouthed funnels with a curve so it's hard to miss-align vs a medicine spoon) though I'm still disappointed in the lack of DISCREET pre-mades. Seems women on hiking trips could care less if someone sees it.
Another one I found that looks like an interesting medium between the gogirl and a ftm's stp would be a "freshette" (
http://www.campmor.com/outdoor/gear/Product___80980) in the idea that it has a tube and smaller funnel...though from the website its hard to see how small or descrete it would be. Another site mentioned it was about the size of your hand, don't know if that includes the tubing.
The issue with women's urination systems is they are simply designed with the idea of taking urine away from a body--not recreating the urination of a male. So yes they may work, but generally aren't designed for use with male clothing (a lot of the "how to"s say to pull underwear to the side, and to unbutton/unzip pants and pull down a little to allow for clearance), and again aren't really designed with a covert mind.
Another minor issue I have is with a lot of STP packers...it seems that they either need 2 hands to hold and position or are cumbersome to pack otherwise...I saw a youtube guy who had the issue with 2 hands and used a travelmate inside his STP instead of the tubing, but that was too rigid-looking and I could see me stabbing myself in the stomach with my own dick bending over or something >.<
I actually thought the STPs for Likereal would work, as they have the same idiot-proof funnel the female stps do...but then Jay mentions they're a waste of money. Ugh...any chance of us just starting a compilation thread with pics for STPs we can make?