Eventually it turns off, just like other laptops/netbooks. The Fan-less design is great, and (of course) Quiet. Built-in 3G. We werent able to properly test this particular bit out, because there arnt many 3G Network providers here in India, but … Win ! Although we've yet to actually test this out. Nokia Booklet 3G Review. Three USB ports, and a 3.5mm Audio Jack. Built-in SD card reader, and SIM card slot. Nokia Booklet 3G Review. Pre-loaded Ovi Maps and built-in A-GPS. … …

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The Nokia Booklet 3G : First Impressions | UnleashthePhones