You can use your iPhone, iPad or tablet to view and attend webinars. If you are in semester 3 or 4 and need credit for your webinar attendance, be sure to type in a greeting at the beginning of the webinars and type in a goodbye when you are logging out of a webinar. They can chart your attendance by viewing your login greeting and your logout comment. There is still an issue with Citrix occasionally dropping signals from wireless devices.
I am finishing semester 4 and have used my iPad for all webinar attendance. I have followed the above steps and have gotten credit for all webinars I've attended. The instructors usually post these instructions at the beginning of their webinars and remind you at the end as well.