All sat nav/maps applications use data to get the maps.
Without a blackberry data plan, or depending on the apps, any data plan; its pretty much useless; as you won't have wi-fi everywhere you'll use sat nav.
Change your browser to HOTSPOT as this ONLY uses wi-fi. Options - advanced - browser - top option.
And no, apart from loggin to via the browser to a webmail site, you would need a blackberry bolt-on to get email via the native email client.
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~Midnight Draven
"That's it then. Cancel the kitchen scraps for lepers and orphans, no more merciful beheadings... and call off Christmas."
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