Just made the switch yesterday. This is just an initial impression as I've had it less than 24 hours, and cannot make a full comparison as of yet. I just got sick of my iPhone 4 saying "no sim" at all hours of the day, effectively making it an ipod touch...and I've been wanting to go to Android for a while to test it out.
Like:
-Screen real estate....love the larger screen!
-Customization- iOS is great for simplicity and ease of use, but I like having streaming data and being able to make it look a little different and easier to use for me
-Setting up my accounts was just as easy as it was on the iphone. Within 15 minutes, I had all my e-mails and facebook and everything set up so I didn't miss a beat
-Camera- this has a fantastic camera. The iphone 4 did as well, and while I'm not a great photographer, I want something simple that can take great shots when I feel like it, and the inspire does that very well
-Flashlight- Simple, but I love having a flashlight app! With the iphone, I just turned on video camera and flash to on which would take a little bit to set up...this is just a swipe and a tap away!
-Widgets- the reason I love android. With iOS, you have to find what you want, tap it, and load it before you can use it. Some of the basic stuff, like e-mail, messages, calender, etc. are able to be set up right on one of the home screens, so I can access it much quicker and see the data I want faster. It may only save a few seconds in the end, but it makes it that much easier to see the info and put the phone away.
-It's a phone! My iphone was a great ipod touch with occasional phone capability...but with that no sim message i got all the time (even after getting new sim cardS), it was just too unreliable. Granted, i haven't had this phone long enough to say it's issue free or not, but at least for the moment, the calls I have made were made successfully, sounded loud and clear, and give me a feeling of security that, as long as I'm in a service area, I can actually use my phone as a phone!
Dislike:
-Screen size- While I love the larger screen for the most part, it does make the phone a little awkward to handle at times. One handed operation is doable, but I find myself using two hands more than I did with the iPhone for similar tasks
-Battery life- jury is still out as I haven't gone through a whole day yet, but the iPhone 4 had truly amazing battery life. I loved not having to worry about whether I'd make it through the day or not, because there wasn't a single time that I used the entire battery to 0%. I'm sure the inpsire will last me fine, but I know on certain days I'll need to watch my usage or charge it before the day is done.
-Volume- in call volume is great, but notifications are a bit too quiet for my liking. I know there are ways around this, but I prefer things to work properly out of the box generally speaking, so I'd rather not have to get apps to tweak the volume. It is loud enough to get by, however, just wish I had the option to turn it up. Again, the iphone was never short on volume for me
-Music playback- not really an issue for me, but I did love having itunes/ipod functionality on the iphone. In my car, I have cds, SD card slot, ipod connection (with an ipod currently, but will switch with the iphone 4 soon), and bluetooth, so I'm not short on options, and the SD card is my main choice 90% of the time. But around the office or home, sometimes it's nice to just throw some music on to listen to, and the iphone 4 made that as easy as possible. This will barely affect me, and I have more than enough other options that this really isn't a problem, but some may be bothered by it more than others
-Lack of accessories- While not everyone likes Apple and their products, obviously more than enough do so you can find 1000000000 different accessories for their products. If I needed a new case, charger, adapter, plug, cable, speaker, what have you with the iphone, I could find one with ease. With the Inpsire, it seems limited to one or two cases (which aren't my style anyway), and the rest are generic fit-all products (like a microusb cable)
-Browser- I like the android browser, but the iphone's browser did work better. It was just smoother, rendered pages better (full screen looks fine on both, but when you zoom in, the iphone seemed to keep everything the same, while android tends to rearrange things to fit...not a bad idea, but sometimes I have to zoom in, then readjust the screen a few times to get to what I wanted).
So far, I really absolutely love this phone, and I'm really loving Android! There are a few things I do miss about the iphone and would prefer to have on this one, but there are enough positives about this phone to keep me using it and not want to go back to iOS as of yet. Me being the way I am, I'm sure I'll go back to it some day, and I'll probably try Windows Mobile 7 and HP Palm OS too....I just love gadgets in general. But for the immediate moment, I'm thrilled with this phone and have zero regrets!