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Many people feel that they have some sort of reputation to uphold, and Tweet_Fit by FraserSpowart is sure to keep weightlifting enthusiasts at the gym every day.

The 0.5-kg device has an electronic means to function as an offline trainer and an online PR agent. The Tweet_Fit gadget can be attached to dumbbells and weight machines at your fitness center or at home, and can actually dictate the goals of your workout and provide helpful advice about posture and technique to help you grow stronger. I find, however, that the most interesting feature is the Tweet_Fit contraption's convention of posting live updates of your exercise to Twitter for all to see. The implications are public confirmation of your rigorous regime, and perhaps proof to your coach that work is being done at home.