Yes. I traveled with iPhone only on several of my trips. I even created a travel blog for one trip and created content and posted from my phone.
This included text commentary.
I suggest looking at the iPhone Photgraphy School blog for lots of videos and tips.
Equipment I usually take:
- backup battery charger
- iPhone ear buds (can be used as a remote photography cord)
- iXpand backup drive
- Jobi Gorillapod stand
- synch cord to attach to charger.
You may also want to use a case that accepts camera mounts screws. I found that additional lenses were merely OK and not worth the money. YMMV.
The editing software provided by Apple was key to great pictures. You may want to purchase additional photo apps. I used the following apps the most:
- Resize Image - reduces size of file for blog posts
- Slow Shutter - extends the shutter speed for night photography and create special effects.
IPhone photography school has other recommendations for apps. I'm not as strong in them so don't use them.
The key, as always, is to learn the features of your equipment ahead of time.
The one place the iPhone failed for me was for anything requiring a long range lens. There is no comparison compared to DLSR. That said, I could hold my iPhone up to the spotting scope and still get amazing photos. I have heard that there are now adapters for spotting scopes.
You will also want a great internet connection if you want to post to a blog. I had decent luck with T-mobile. You need to be an existing customer at T-Mobile for at least as long as your trip duration to get international coverage.