Ergonomic case recommendations?

[RTbar]

What cases would you consider "ergonomic"? That would include features like pronounced grips, handles, ect. I want something that is easy to hold for long periods of time, while still being functional and easy to travel with

 

[charlieegan3]

like this?
link to picture

or
http://www.google.co.uk/imgres?start=168&um=1&hl=en&sa=N&biw=1920&bih=924&tbm=isch&tbnid=Xhq_O8KCKwUJpM:&imgrefurl=http://www.trendhunter.com/trends/grip-for-ipad&docid=88Nhfjq_srobuM&imgurl=http://cdn.trendhunterstatic.com/thumbs/grip-for-ipad.jpeg&w=600&h=330&ei=2CN2T77LLsLs8QPC4ajhDQ&zoom=1&iact=hc&vpx=1143&vpy=432&dur=1737&hovh=166&hovw=303&tx=145&ty=98&sig=107088622801021417995&page=4&tbnh=97&tbnw=177&ndsp=60&ved=1t:429,r:6,s:168

or
http://coolestgadgetsandgizmos.com/2010/12/31/tangilsing-has-introduced-hand-grip-case-for-the-ipad-the-grabbit/

or
http://www.google.co.uk/imgres?start=50&um=1&hl=en&sa=N&biw=1920&bih=924&tbm=isch&tbnid=KIVzu45izr8a4M:&imgrefurl=http://www.sourcingmap.com/black-soft-silicone-game-control-handle-grip-case-for-iphone-p-163534.html&docid=dNO1EbN4Z8cUfM&itg=1&imgurl=http://m2.sourcingmap.com/smapimg/en/n/11d/black-soft-silicone-game-control-handle-grip-case-for-iphone-163534n.jpg&w=280&h=280&ei=4SN2T5nRI8bj8APt5JisDQ&zoom=1&iact=hc&vpx=1313&vpy=472&dur=707&hovh=224&hovw=224&tx=84&ty=112&sig=107088622801021417995&page=2&tbnh=136&tbnw=136&ndsp=59&ved=1t:429,r:27,s:50
but for iPad?

 

[RTbar]

thanks for the links... sort of like those, but I was thinking more along the lines of a normal case with "grips" sort of like this

but sleeker. I'm not sure really but I have some wrist pain using the ipad without a case, so I am wondering what cases people have found made holding the Ipad easier/ less stressful on the joints.

I just received the Rev360 case in , and while it is makes the Ipad more comfortable to hold, it's kind of bulky and heavy

I am thinking of the headcase TurnTablet because the holder is removable, and it appears to be very durable... the downside is it lacks smart cover integration or some type of stand