They arrived today.
After trying them out for a few minutes, this one sucks and this one is okay. The batrest is unstable and wobbly and the phone slips off it at the slightest impact. The crabble is sturdier, less wobbly (still wobbly, but less), and the non-slip bits mean it doesn't slip open and the phone doesn't fall off when poked at.
I know which one I'll be carrying around.
In other news, the Clarifi case is nice, but likely harder to modify to include just the lens like I was thinking. BUT, I can use it as a model for one I'll actually use.
The Pogo stylus is decent enough. I won't really need it again until glove weather returns tho.
The soundclip is totally NOT worth $8. but it /does/ work as advertised.