It looks like Apple will have a competitor in the tablet arena. Cisco will be releasing their product early next year. The difference is Cisco’s version is aimed towards corporations. Let’s see how this plays out over the next few months.
http://finance.yahoo.com/news/Cisco-to-launch-iPadlike-apf-1501416035.html?x=0
A CIO's Voice 
You should also check out Notion Ink’s Adam. I think this will be a challenger to Ipad too.
http://blog.laptopmag.com/hands-on-with-notion-ink-adam-prototype-its-amazing
it will be coming out in November….and even verizon is coming up with a tablet too.