The only difference I have noticed is that it DID still ask for the PIN for that associated credit card so it seems to run it as a debit transaction. So not quite as convenient as some of the advertised locations but still works there.
I will point out that just because you're asked for a PIN, doesn't mean it's debit. It just means you're being prompted for an additional authorization. The requirement for a PIN on an EMV transaction is imposed by your bank. Normally the phone substitutes for the signature requirement, whatever particular communication took place in that transaction prompted the bank to require the PIN in your case.
Example... I have a personal CC linked to my phone. If I use the *phone* at an EMV terminal, I'm not prompted for a signature or a PIN. If I use the card itself, I am prompted for the card's PIN when I use it at the same terminal. Another card I have, never prompts for a PIN.
This requirement is really messing up people in the US as we move to EMV. Many, many, many people do not know that their bank has assigned a PIN to the card, and thus do not know what it is.
I support cash registers for a living, see this every day.