i have 25gb from skydrive and i want to use it with notetaking/pdf viewing apps. so far i like goodreader and notability and remarks. is there a way to make those apps sync with skydrive? also, i want to record lectures using apps like notability and remarks(dont know if this is possible), is there a way i can directly upload it from ipad to cloud services like google drive that will allow me to listen without downloading the file? also, this might be a stupid question but can i buy apps using a computer and download it to my ipad later? once i buy the app, how many times can i download it and to how many devices?