I compiled latest version of phalcon.so for cPanel if anyone needs. I'll keep it up to date.
It should work on any cPanel shared hosting as long you can edit php.ini and php >= 5.4
Compiled for php 5.4, 5.5, 5.6 with centos 6.6 kernel 2.6.32-504.23.4.el6.x86_64
Tested on arvixe.com and premiumreseller.com