A while back we already made some improvements to ToffeeShare and made it possible to send files of many gigabytes in size. After some thorough testing we discovered that this could still be improved for some browsers and our systems. These improvements are now live, so if you experienced issues with larger files before, that should now be solved. Don't hesitate to send us a message if you have any trouble with this.
One of the things we are still working on, is a way for you to keep files online when you yourself aren't. This entirely without storing your data on our servers. We have a working prototype for this, but we still need to do some additional testing before we will throw this out there.