Yes as you already now know iPhoto can still be found in applications,,, HOWEVER, be warned that apple just informed me yesterday that it will eventually disappear and you will need to have all of your iPhoto albums transferred from iPhoto to new Photos pgm just to be prepared for eventual shelving of iPhoto,
I found this out because immediately after updating to os x 10.10.3 and as well after updating to the new photos pgm, my iMac all of a sudden no longer shows my camera under Devices in the Finder, and worst of all would NO longer recognize .jpg downloads from my camera (specifically Canon Powershot G6), I have spent 2-3 hours per day for last 2 days on phone with apple techs and they made me do a sh L t load of tests, and file caches adjustments etc… etc…, including a recovery re-install of these recent updates, but it still does not work, they have decided that the issue is definately not a problem with my camera as I was able to download the pics to an old laptop successfully, and then transfer them to a thumb drive and then was able to successfully transfer the .jpg's to my iMac using the thumb drive,(a long and painful process), plus all jpg's that were already in my iMac are still recognized and usable, it's when i try to download jpg pictures from a camera to either of the following pgm's; "image capture", "iPhoto", and even new "Photos" pgm, computer does not recognize .jpg's and gives error (-9937).
they said that problem is with one of 3 issues;
1) new OS X 10.10.3
2) Application specific ("Image capture", "iPhoto" or "Photos") - not likely that all 3 now have issues at same time.
3) Compatibility issue (specifically that the new OS system is no longer compatible with my specific camera)
They refused to pick one, and the specific tech dept. "photos team, image capture team" would not speak with me and simply told this tech guy to tell me to do a recovery re-install of these new updates and OS, which did not work.
BTW, this tech guy i am talking with is a senior tech who claims he does not know everything about image capture issues. he is supposed to call me back today (Day 3) (LOL are we having Fun yet??? LOLL) to find out if re-install worked,,, IT DID NOT!
MOST IMPORTANT PART OF STORY;;; I have found online that jpg downloads not being recognized occurring immediately after an OS update/upgrade go back as far as 2009/2010. on a hit and miss occurrence.
I am going to take a guess and say that there is a bug in new OS or somehow the proper Drivers incl. in update for my camera have a bug. Canon web site says drivers are not available on their site for OS X 10.10.3 and are included in iMac OS software. Also Canon's Image browser software is no longer available for OS X 10.8 or higher.
They said senior tech who is calling me back today says if recovery re-install of updates do not work(it did not) he would take some pertinent info from my computer or on their end, (he was vague about that) and report it to appropriate dept. to see if they can get back to me shortly with a fix, (not holding my breath), or a future Bug fix/OS Update which he said could take 3-6 months.
They also recommend that I buy a memory card reader and every time I wish to transfer pictures from my camera to my computer, that i should remove the compact flash card from camera and put into memory card reader and transfer it to my iMac that way (for me thats 2-4 times per day, as I sell on eBay, Kijiji and Craig's List.), No more simply plugging my camera into my iMac using USB.