I'd prefer the exact opposite. My pocketable device should have a microSDHC card slot.

Full size SD card slots are for netbooks, UMPCs, and larger devices, and they're intended to receive any size SD card (micro, mini, or full size) via adapters where necessary. That latter requirement isn't necessary (nor, even, really appropriate) in a pocketable device.

MicroSD cards are cards that can be put into any device, and take up as little room as possible. Both of those, but especially the latter, are highly appropriate for pocketable devices.

Though, I wouldn't consider either direction to be a "deal breaker". However, I would be greatly disappointed to see Nokia do another miniSD slot.