[exim] redis as new query-style lookup type?

Hello,

is someone working on the implementation of a lookup type "redis"
(http://redis.io/)?

redis is almost as simple as the passwd-lookup (but can only be used
through an API, but adds replication and a client server model. So it is
ideal to replace the more complicated LDAP for the lookup of mail
addresses, since the LDAP tree possibles aren't actually used (first
level: domain, second level: userpart). And it is much easier to setup
than mysql.

Kind regards
Marten