With SkyDrive not even 6 hours old, we already have our first addins for it. The Spaces and SkyDrive team have just unveiled a new module for your Windows Live Space, one that shows the public folders you have on your SkyDrive account. To access it, sign into your Space, click on the Customize button and add module and go to the Windows Live section.
The module will look like this when viewed in non-edit mode:
And for Writer we have a plugin that will allow you to put the embed code for a public SkyDrive folder into your blog entry, written, and shamelessly promoted, by me.
I'm just waiting for the plugin to be approved by Windows Live Gallery, but in the meantime, you can download, funnily enough, from my SkyDrive Space 
Plugin is now available on Windows Live Gallery. Full source code available too.
Source code: http://www.codeplex.com/SkyDriveEmbedPlugin
Download Plugin: http://gallery.live.com/liveItemDetail.aspx?li=27545581-4b54-4f6d-9007-ed3b168dab43
Update: Apologies, this is the first plugin I have created using Visual Studio 2008, and the setup defaults to having .NET 3.5 as a prerequisite, I have changed this and it now only requires .NET 2.0, not 3.5. The link is the same, so if you are having problems, just download it again. Sorry.
Update 2: As any of you who know me will know, I am never happy with my plugins, so I have made a slight amendment to it. At the moment, the way the embedding works from SkyDrive is to use an iFrame tag, now this gets stripped by a few blog services, so I have given the option of turning off iFrame mode and using the plugin to do all the hard work, the end result will be the same though. The download link above is still the same, but it now points to the updated version (if you want to check, the dll should be version 1.0.1.0)
SL