I am currently having somewhat of a debate with our Marketing Director on whether to use Skydrive or Dropbox and have a few questions that aren't very clear from the searching Ive done online.

Can I share a file via a link in an email without the recipient requiring a skydrive account. I can do this with Dropbox?

Are there plans to allow for more than 100GB with Sky Drive. Dropbox has better options for storage.

Is there selective syncing available? Meaning can I select the files to sync.

Reviews appear to show Dropbox being a bit faster uploading/syncing files. Any comments are appreciated.

Is there only a 2GB limit on uploading file.

Does it Keep track of last person to change file?

Security, what would be considered more secure Dropbox or Skydrive and Why?