I was thinking of trying out Lightroom. I've done a lot of geotagging in iPhoto, would those tags be imbedded in the photos themselves or are they exclusive to iPhoto/Aperture?
iPhoto uses a database for metatags; I haven't used iPhoto in a long while now, but I made an Applescript to embed metatags into the files without having to export them. Aperture and iPhoto use the same library, and from Aperture you can simply save the file to embed the metadata without altering the image. So you could download a trial of Aperture, open your iPhoto library, select all, and Save. Might take a while depending on how many pics is involved. Running Aperture for the first time might also cause it to create thumbnails for all the images, all of which take time and resources.
Mind you, I have not specifically tested the Geotagging metadata, and in the past there has been some compatibility issues between Adobe which use XMP tagging exclusively (which they invented) and Apple which has used the older IPTC standard by default, and other software which implement things yet differently.
I've been using iPhoto and have been thinking of upgrading to either Aperture or Lightroom. I honestly don't know which I want to use, but wonder if it is easier to switch from one to another at a later date (I.e., is it any easier to move from Lightroom to Aperture than the opposite?).
My iPhoto pictures are all JPEGs and I don't really have any tags or other data to worry about. I am planning to start shooting some in Raw and would like to get my photo management going forward on the right foot. I would like to use whatever is less likely to lock me in to some format or software in the future.
Is one program a better bet than the other?
It is a matter of preference which is "better"; they both have their plusse and minuses. Aperture users are waiting for version 4 to come out to match LR4s new features. Having used both, I prefer Aperture for its workflow, but I prefer certain aspects of LR4 and hope the next version of Aperture will address these.
If you had a lot of tagging and comments, I'd say start with Aperture where you can open the iPhoto library and resave the metadata easily. Otherwise it is a toss-up if you choose to use Referenced libraries (like on an external disk) versus Managed which keeps them all in the app's folder (in Aperture it is inside a library Bundle in the Pictures folder).
Both are non-destructive editors, and the edits are all non-transferrable, so if you move from one to the other, you can resave the metadata, but you cannot transfer edits either way.
So the answer in your case with no tagging to preserve from iPhoto; there is no difference.
4. I'm very concerned about Apples neglect of Aperture. They've been de-emphasizing their pro apps in recent years. They revamped Final Cut into more of a prosumer product whereas it was the goto pro video editing suite. They've taken similar steps with Aperture by working in iPhoto features.
To be fair, while they mucked up the transition from Final Cut 7 to X (both should have been available concurrently while they finished the missing features), all the missing Pro features in the initial release has been reinstated as promised; Final Cut X may not please all Pros, and their handling of the transition lost them support in a conservative industry that needs longterm certainty, but it is no Prosumer app, even if it is more user friendly.
As for Aperture, they are positioning it to make transitioning from iPhoto smoother by unifying the libraries, but it is not "dumbing down" or any less Pro for things like changing a tab from "Metadata" to "Info" as some have said. Apple is secretive and with a lack of feedback people worry about what Apple is up to, esp with the Final Cut debacle and the long-overdue Mac Pro. Aperture users like myself are naturally worried by the delay in a new version and lack of communication of what is going on. Their extensive reference to it and emphasising it as a Pro app at recent events and use in the Macbook Pro ads lends suport to it remaining supported and as a Pro app.
But they need to be more forthcoming, as without any formal statements all we have is rumours, which point to job ads seeking IOS developers for Aperture development and unreleased books on Aperture 4 listed on book sites.
So hopefully the delay is simply one similar to when OSX was delayed due to the developers having been diverted to developing IOS. In a time when Android tablets are becoming more prominent and Adobe has released PS Touch for both IOS and Android, it is not a far stretch of the imagination. Hopefully a major revamp and optimisation is also on the cards and another reason for delay. One hopes.