This is very likley a limitation of what Ovid is exporting. In our initial beta testing of the EndNote for iPad app, we did see some issues with importing from both Springerlink and SciVerse but saw the same issues with other mobile web browsers so concluded that it was an issue on the data providers end. It could not hurt to reach out to the data providers directly to let them know - hearing from real cusotmers will likely mean more than them hearing from us.
Regardless, we will look into it and report back.
Jason Rollins, the EndNote team