Chromecast a reason to dust off my old nexus devices? Wifi issues first hand anyone?

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http://forums.androidcentral.com – Made the switch to an iPhone and iPads a year ago but got a Chromecast on a whim when I saw that it was in stock at bestbuy near my sister (DC stores were all out tonight). I could format my Sprint Nexus S or my very old Dell Streak 7 and see how they work on wifi with Chromecast or do you think will this functionality come to IOS devices sooner than later? Probably wont get my hands on it till Sunday but obviously anxious to be back in the google family of products and hear others experiences. Also I heard there are issues with weak wifi signals causing issues. I hope that's not the case b (HowTos)