Bluetooth 1.2 vs. Bluetooth 2.0?

[AubreyL]

I have been researching bluetooth headsets for awhile and think I finally narrowed it down to two, the Jabra BT500V and Jabra 5020. Honestly I like the 5020 more since it's newer and maybe more features but the only thing I don't like is the BT500 series has the gel earpieces and different sizes and from what I read the 5020 doesn't. The 5020 seems more like the iPod standard headphones from the pictures I can see and I've never been able to wear those. I wear glasses and have been told both work well with glasses.
The one major difference is the 5020 is bluetooth 2.0, the BT500 series is 1.2. Will this cause any problems for me or is 1.2 fine?

[Goldenbear]

Most headsets I looked at weren't even v1.2 a few months ago.

I think one advantage of v2.0 is that it's supposed to use even less power than v1.2. If you look at advertised talk time, Jawbone gets 6.5 hrs, BT5020 gets 10 hrs, and some Plantronics with v2.0 I saw gets 8 hrs (half the size of the Jawbone).

A bit off-topic, but... I really like the ear gel on my BT500, except for the fact that it comes off too easily (I already lost one). The BT5020 is appealing because there's no ear gel too lose, except it also doesn't seal out outside noise as well. They really need to use ear gels similar to the in-ear headphones (the tri-flange on my Shure E4 NEVER come off on their own).