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Originally Posted by masetas
wouldnt that require the keyboard to connect via bluetooth which would drain the battery??
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Not really, they can install a data connector into the back of the phone (just like Epic 4g has connectors for external antenna on back of the phone) and power it can get directly from the battery. And if REALLY needed it can have its own battery.
But then again bluetooth route might work too. Now that we have bluetooth 4.0 which has low power mode that consumes half the power and much lower latency. Other low power technologies you can use is NFC. Since new phones are charged by wireless like the SGS3 you can charge both phone battery and kb battery at same time
Maybe best of all is ZigBee which effectively you won't need a battery:
ZigBee Low Power System-on-Chip 802.15.4 Wireless Mesh Networks | Dust Networks
It gets enough power just from you pressing the button using harvesting methods. The only issue is you won't have backlighting on the keyboard but if they use a paint that glows in the dark for the letters that would be enough for most people.
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everyone says just use swype but one that shit is not accurate completely and when using on screen keyboard it takes away screen real estate.
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Even if swype was perfect, there are scenarios where it is impracticable. Like yeah, when you need the full screen!