Have a similar feature in RouterOS:

"Cisco IOS NAT will translate the addresses that appear in DNS responses to name lookups (A queries) and inverse lookups (PTR queries). Therefore, if an outside host sends a name lookup to a DNS server on the inside, and that server responds with a local address, the NAT code will translate that local address to a global address. The opposite is also true. "

For me this only matters when two devices are on the same vlan but still would be very handy.

Seconded. Hairpin NAT is an ugly solutions, and split horizon DNS usually introduces the need for a second DNS server and administration overhead.

If this can't be implemented into the straight NAT scenario, it should at least be an option for the local DNS resolver.