I sent an e-mail just a short while ago to enquire about it, will post their reply if/once received.
I gonna go peruse the droid forums where they frequent cause I'm sure the question has been asked before.
As a side note while searching for phonemypc monthly fee I came across a comment by softwareforme on a comparison to logmein C&P:
8. SoftwareForMe.com wrote on May 7, 2010
I can compare them.
Ignition uses a technology similar to RDP: it renders content on the phone rather than transfering image data. Thus, for basic windows stuff it will probably perform better than PhoneMyPC on 3G. However, it consumes so much CPU (and presumably battery) power that the back of the phone becomes hot.
Ignition allows you to log-in to a PC, but PhoneMyPC is missing this feature until the next release.
PhoneMyPC outperforms Ignition dramatically when displaying graphics content such as photos or video.
Neither app has sound or file transfer. LogMeIn traditionally requires a monthly payment for sound or file transfer; PhoneMyPC has promised to provide those for free in the next few releases.
PhoneMyPC has many convenience features, such as passive viewing (for monitoring a PC), control-pad like control (for giving presentations), process and window control (for techies and diagnostics) and more.
PhoneMyPC has a much smoother UI feel with kinetics and smoother scrolling.
LogMeIn (maker of Ignition) is a well established company with lots of money, mediocre support and an established reputation.
SoftwareForMe (maker of PhoneMyPC) is a new, small group of Android geeks, provides excellent support and has no reputation to speak of (other than what has been earned through PhoneMyPC)