Syncplicity, free for 2GB of storage and syncing between two computers and $9.99 a month ($99 a year) USD for syncing among an unlimited number of computers and 50GB of storage, mirrors any folder on your system with its online sibling in the "cloud." Unlike MobileMe, where items to be synced must be contained within your iDisk, any folder on your hard drive can be synced by right-clicking it and selecting it from a menu -- really nice if you need to get a subfolder of a subfolder online. As soon as that folder is updated, so is the remote one.
Another touted feature is the ability to access those folders from a browser on any computer, including your cell phone.
The Syncplicity beta is an Intel-only program and requires OSX 10.5.
Syncplicity joins a crowded field that just doesn't include MobileMe: Zumodrive, Dropbox and SugarSync are out there as well, all willing to do battle for customers who are growing increasingly dissatisfied with Apple's offering to the point that they are considering alternatives.
Have you tried out the private beta for Syncplicity? What other cloud storage solution do you use? Let us know in the comments! Meanwhile, we'll start looking at Syncplicity on our end and present you with a full look at the beta in the next few days.