SPD pedals with platforms

[rogerspam]

Thinking of making one of my bikes SPD again (been running Speedplays for years now) mainly to consider pedal options with platforms around it. Been thinking of turning my old road bike into a "commuter".

1) Does the platform help with stability when pedaling and not wearing shoes with clips (ie. just hopping on it to run some errands)

2) Any of these pedals have platforms that are removable? Seems like the Shimano ones are integrated/permanent.

Looking at the Shimano PD-ME700, PD-M530 and PD-M424 options but any other suggestions would be appreciated.