Tall claims of fancy uploader in Windows SkyDrive just have turned out to be another hollow screams from Skydrive team. I just was figuring out the upload capability of Silverlight Uploader (which claimed support upto 50 mega bytes). But no sooner the file limit crossed 20 mega byte, it started to show gestures of memory leak and crash the browser
When running within the context of Internet Explorer the system itself was coming to a standstill. Silverlight plugin in non-IEs were terminated by the said browser virtual machines.