There was a slight increase in the number of sources that issue priming queries to DNS root servers seen on 18 March 2010, right after the introduction of a signed .arpa zone. See here an analysis and some graphs.
The RIPE NCC is working on an Local Internet Registry (LIR) Locator tool that provides the public with geographical information about LIRs and the services they offer in the RIPE NCC service region: Europe, the Middle East and parts of Central Asia.
18.104.22.168/8 has been assigned by IANA to APNIC on 19 January 2010, for use for as public unicast space for further address allocations and assignments. Before starting to allocate and assign from this range, APNIC has undertaken a study into 22.214.171.124/8.
Related to a thread on the NANOG mailing list about "BGP hijack from 23724 -> 4134 China?", we checked if any of those prefixes originated in the RIPE NCC service region.