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The Acer Iconia Tab A500 was one of the first tablets to ship with an NVIDIA Tegra 2 dual core processor and Android 3.0 operating system when it hit the streets last year.

Now Acer has started to roll out an Android 4.0 software update for the tablet, meaning that while the device is nearly a year old it can still run the latest Google software. And you can pick one up cheap. Today TigerDirect is selling refurbished models for just $275.

Meanwhile if you’re in the market for a cheap ultrabook, there’s an Acer for that too — 1SaleADay is offering a refurbished Aspire S3 ultrabook with a 13.3 inch screen, Core i5 CPU, 20GB SSD and 320GB hard drive for $550. That’s the best price I’ve ever seen for any ultrabook.

Here are some of the day’s best deals on mobile devices and accessories.

• Refurb Acer Iconia Tab A500 Android tablet w/16GB for $275 - TigerDirect
• Refurb Acer Aspire S3 ultrabook w/Core i5 for $550 – 1SaleADay
• Samsung 900X1B 11.6″ notebook w/Core i4, 64GB SSD for $600 – BuyDig
• Refurb Acer Iconia Tab A100 7″ Android tablet w/8GB for $170 – 1SaleADay (via eBay)
• Refurb Toshiba Thrive 10″ tablet w/8GB for $200 – 1SaleADay (via eBay)
• Refurb Asus Eee Pad Transformer TF101 w/16GB for $280 – TigerDirect
• Refurb B&N NOOK Touch eReader for $60 – B&N (via eBay)
• Lexar 64GB USB flash drive for $43 – TigerDirect

You can find more bargains in our daily deals section.