You can wait on the new Shield Tablet later this month, sure, but Amazon is looking to tempt you with a killer deal on a 7-inch Kindle HDX with LTE. If you can make do with Amazon's unique take on Android, you can get $100 off the normal price at all tiers.
Google officially pulled the Xperia Z Ultra GPE from the Play Store a few days ago, but it looks like stock wasn't completely gone. The device has shown up on Expansys USA for just $349.99. That's $100 less than Google's last price for it. We don't know how long it's going to last, but Expansys says it has more then 100 in stock right now.
It seems like there are just never enough electrons in your phone, right? With just a few thousand milliampere-hour, it can be easy to drain your device before there's an outlet handy, so it's a good thing portable battery packs exist. If you're carrying something extra anyway, you might as well go big. A Crave Travel Pro 13,000mAh battery that should work nicely is on sale over at Amazon.
The Nexus 5 is still a pretty darn desirable phone with all this Android L business going on. You can grab a Nexus 5 on eBay today for a reasonable discount. It's $329.99, but there's no tax and shipping is free.
One of the drawbacks of going with a prepaid carrier is that you have to pay full price for your phone at the time of purchase – no subsidies or payment plans. Going with Net 10 might seem like a more viable option today, though, with an extra $100 off the Moto X via Moto Maker.