Between traveling and all my calls/emails/internet use/MP3 player usage etc it is becoming nearly impossible to get through 1 day on a single charge.
Right now (long story) I have a Pearl (soon to be a Curve) on TMO & an 8130 Pearl on Sprint. TMO has my BES and Sprint has BIS only + free Telenav + free text messages.
Other than carrying two devices, this works quite well as I can take calls on both (using conditional forwarding) and listen to music on both. That way I've always got a charged device. The (major) downside of course is paying for two calling plans + two Blackberry plans.
I'm considering going to either a Curve & a Pearl (I love both) on T-Mobile only and just keeping both BBs charged & swapping the SIM card as needed. I can certainly listen to MP3s on the BB without the SIM too. What I don't know is what happens if you do this? I know I'll lose my BES email as only one BB can be attached under my name to our corporate Exchange server... but will I still have full BIS support + internet/browsing on the 2nd BB after a SIM swap???
Other (el cheapo) option is just carry 1 Blackberry and a spare battery with that RIM charging stand that can charge your phone with the travel charger and the 2nd battery (using your BB USB cable) both at the same time!
Your thoughts/experience appreciated ...
/BD