I looked on Amazon and found a couple different versions of the IBlue 737a, one of which has v2 in its name, which makes me think its a later revision. the cost is the same for both of these, so logic says, buy the later one. But sometimes "improved" products turn out not to be "improved" from our point of view for whatever reason, like not having an on off switch or whatever. So I'd like to hear from folks who have recently bought an IBLue, if there is any reason why not to get the v2 one. Or are Sendero recommending something new if you're wanting a new receiver? I've got an older one that came with my original sense nav, but my voice sense hasn't worked for a while. I'm getting it fixed, have purchased the 2010 gps upgrade and am considering a new receiver; hence all these questions. mary Mary Otten motten53@xxxxxxxxx To change your email settings (unsubscribe, digest only, or vacation mode): http://senderogroup.com/social_media/email.htm Additionally, to unsubscribe send an email to gps-talkusers-request@xxxxxxxxxxxxx with "unsubscribe" in the Subject.