Well ive been using a Plantronics 510 on my last 2 cell phones and never any problems. Now i have a new 3GS and im getting alot of complaints Does the iphone work well with any bluetooth ? I drive a tractor trailer for a living and use my bluetooth alot. Anybody else have problems with Plantronics on the iphone ? Any suggestions for a good match ? I dont mind buying a new headset as long as it works well , its critical in my profession. Need something with decent noise canceling ability too.