Thanks for the tip. However OSL airport offers free stroller for use after security check in.
I wouldn't like to take the stroller to the gate, since we have a Prampack(a great product to use).. that securely packs and protects the pram. Plus pram is covered for damages if delivered in Prampack.
Checking in at gate means stroller goes unprotected. One of the worst thing to get on vacation with a kid is a broken stroller. My friends had it..and their vacation was ruined.. though they got compensation..they need to wait for 7 days without a stroller..before they could buy an appropriate one.