The goal of Funambol is to create a platform that will  bring mobile applications to the masses, starting with push email. Obviously,  via open source.
 Bringing open source to the masses requires a bit  of explanation. If you work in this space, I know you tried to tell your mom  what you do for a living and failed. She does not understand what open source  is. In my experience, the problem started with her not understanding with  "source" means.
 Some time ago, I have been asked to hold a seminar  around mobile open source and dual licensing to college students. The crowd was  a mix of people with engineering and economic backgrounds. The first group,  techies enough. The second group, a bit more techies than my mom (with all due  respect) but still not enough.
 The key is that you have to explain "source" first:  non techies do not understand the concept of source and binaries, let alone  compiling. We grew up with that. It looks simple but it is not an easy concept  to grasp for the masses.
 Hence, here is how I explained open source to  them:
 - how does Coke produce its final product (the  beverage you like)? They start from a very secret recipe (the "source"). Based  on that, they produce your Coke. The recipe is not available to anybody, it is  totally proprietary. Nobody can improve it, but Coke. That's what Microsoft does  with Excel.
 - if you want to make Tiramisu, the recipe is  public. It is not proprietary. The "source" is open, available out there on  the Internet. Anybody can improve it and make a better Tiramisu than the person  who first invented it (which I trust is not my wife, though her Tiramisu is  great). Many today share their modified recipes on the Internet. Most do  not and keep their changes secret (proprietary) to impress new boyfriends.  Wouldn't be great if anybody who improved the Tiramisu recipe would be forced to  share it on the Internet? 
 - THAT is what is behind Open Source. The recipe is  public and open and available on the Internet. Everyone that changes it must  share it with the world. The concept is called copyleft, which is something  different than copyright (yep, engineers might love compiling source code into  binary code, but are also funny people). Copyleft is the basis of the GPL, the  most used open source license. You change something in the source, or bundle the  source to distribute it with your code, and you have to open source everything.  That is what makes open source software incredibly better than proprietary  software.
 - if you do not like the idea of open sourcing your  code (you want to create the uber-Tiramisu) and behind the project there is a  company with a dual licensing model, then you can license the code (in exchange  for cash) and get rid of the copyleft requirement. That's how Funambol  makes money and puts it back into the community to improve the product even  more.
 Lately, I found out that this explanations brings  my point home. My mom knows what I do (and still calls me every time there is a  problem with her computer). I am not sure if it will work for you as well, but  if you try, it works and you are grateful, I accept Tiramisu as a  gift.