Concealment + Stealth

[Quandary]

Does ANY type of Concealment count as the pre-req to make a Stealth check?
I.e. does a Blur spell or Wind Stance allow one to attack in combat then move (making the Stealth check)?

What exactly happens if you Full Attack, 5´step and make a Stealth Check? The opponent isn´t aware of your new location (+Total Concealment if they guess right)? I thought of this when thinking of a Magus-Shadowdancer1 build, but then realized that HiPS is almost superfluous if one has other reliable ways to gain a miss-chance (and it works like this).

[King of Vrock]

I don't know about the RAW but I would not consider blur sufficient enough to provide the concealment necessary to stealth. The spell merely distorts your form like a funhouse mirror, providing a miss chance. To stealth you need to hide in darkness, fog, mist, undergrowth, etc.

[Quandary]

Right, that´s kind of the other side of the coin rolling around in my head.
...Then again, I can imagine that Blur (or other myraid Concealment effects like Wind Stance)
could ´look´ similar to if you´re in a fog/mist cloud and adjacent creatures look ´Blurred´.
I´m just a little blurry on the whole thing... /8-P

EDIT: To clarify the first post, I don´t see anything in Stealth which increases the Concealment level, so any benefit is confined to forcing them to guess your location (or take action to discern it), and effects like Sneak Attack IF they don´t learn your location, presumably.

If it DOES work this way, every Rogue should be able to 5´ step or otherwise move (making Stealth check) before attacking to gain Sneak Attack on their 1st attack of the round, right? (probably also usable before + after Spring Attack)
I don´t see a big problem with that, especially given it doesn´t compare to TOTAL Sneak Attacks on all attacks, e.g. when Flanking or when target is Flat-Footed... It´s more like a lesser (magically augmented) version of Feinting, which is lost on the first attack you make. ...But I´m still not solid on the issue...???