Sorry about that. I've found the issue, fixed it and tested it:
root@ip-10-184-13-57:~# dpkg -l neo4j
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-==========================-==========================-====================================================================
ii neo4j 2.1.0.M01 graph database server
Please update this thread if anything else goes wrong.
Julian.