What are your thoughts about the size of the keyboard? I have looked at your solution and am leaning towards it for the same reason as I don't always need a keyboard and I can use the smart cover I already bought. But a bigger issue for me is the size of the keyboard. Zaggmate/Logitech looks sexy but lacks a full size keyboard (92% is what I believe is it's size). I have netbook PC with the smaller keyboard and hate it. I need to decide this weekend as I am traveling next week.
If keyboard size is critical to you, I'd recommend the Microsoft 6000 Bluetooth Travel Keyboard. It leaves you with the problem of storage. That's not a dealbreaker, however, if you have a notebook case capable of accommodating both the both the iPad and the keyboard. (I have a Timbuk2 netbook messenger bag that works. Not stylish, but utilitarian.)
[ame="http://www.
amazon.com/Microsoft-Bluetooth-Mobile-Keyboard-6000/dp/B002NP8XJ0/ref=sr_1_fkmr1_2?ie=UTF8&qid=1306057750&sr=8-2-fkmr1"]
Amazon.com: Microsoft Bluetooth Mobile Keyboard 6000: Electronics[/ame]
[ame="http://www.
amazon.com/Timbuk2-122-Classic-Messenger-Bag/dp/B003386CVC/ref=amb_link_287989822_3?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=hero-quick-promo&pf_rd_r=1482Y3D2TANE5G40KMRE&pf_rd_t=201&pf_rd_p=1253093242&pf_rd_i=B000TGSVQK"]
Amazon.com: Timbuk2 Classic Messenger Bag: Clothing[/ame]
The advantage of the Msoft keyboard is that its keys are full size and the keyboard itself is ergonomically curved so you don't feel as cramped as you would with the Apple keyboard. Doesn't fit as well as the Apple keyboard on an airline tray table, since it's wider overall and the curved form factor adds a bit to its front-to-back length, but it's very comfortable to use.
The Msoft keyboard has a plastic housing compared to the Apple's aluminum, but I've found the former to be very durable and to travel well. Furthermore, the Msoft keyboard comes with a separate number pad, so if that's important to you, it's especially sweet. Finally, the Microsoft keyboard is about $25 less than the Apple.
So now you have a bag that holds both a very good keyboard and a bag that accommodates both it (if you need it) and the iPad. The only thing lacking is a stand for the iPad that holds it at an appropriate typing angle.
Amazon has a number of stands that should meet your needs.
[ame="http://www.
amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=iPad+2+stand&x=0&y=0"]
Amazon.com: iPad 2 stand[/ame]
OK, it's a cobbled together solution, no question about it. But if you want a detachable, very good keyboard, a stand that lets you hold the iPad in either landscape or portrait orientation, and a bag that will hold the iPad/SmartCover combo, the stand, the keyboard and a sandwich or two, it does the job at a cost competitive with the Zaggmate or even less if you already have a laptop/netbook bag.