I am also going to be using the new Retina MacBook 12" not only as my main but also as the only machine.
Currently I have a MBA Late 2010 with 2GB RAM and Core 2 Duo and thus I am not doing any graphic/video editing because its not able to handle it.
I am really suffering now because MBA with such low configuration is so slow that I can run only a few tabs in Safari and when I open more apps at the same time, it is almost unusable as I have to wait for couple of seconds to even switch between apps sometimes. Not to mention heavier usage which really makes mu furious. I was considering buying a rMBP 13" a month ago but guys here in another thread advised me to wait a few more weeks to see what they launch (thank you).
Using MBA for almost 5 years, rMBP is just heavy and bulky machine (crazy as it sounds but thats my feeling when I hold it .. just does not seem like 2015 ultra portable easy to carry machine).
If Core M will be able to handle most of this apps simultaneously, its going be ideal Macbook for me:
- Mailbox
- Mail App
- Safari or Chrome (20+ tabs) including various web apps, large gDocs and Facebook etc.
- Evernote
- Wunderlist
- Skype
- iMessage
- Spotify
- Calendar
- Pages/Keynote
- Excel
- MT4
- + small apps in menu bar such as CloudApp, F.lux, Monospan, Caffeinne, Dropbox etc.
- ++ I use VPS almost every day and I would need to virtualize some Win apps soon
If I am doing something more CPU demanding, I will easily close some apps to make some computing space for it.
I am sure Apple engineers have done the optimization well and I guess they would not lunch a choppy Macbook. Having 8 GB RAM and superfast SSD (such as in new rMBP 2015) it will be ok imho.
Nevertheless rational part of my brain still tells me to buy the new rMBP 2015 for the same price (with much better processor just better value for that money) because my laptop is laying on my table most of the time in the office (Pro would not be a problem in that case). But I travel from time to time and I carry only light and small backpack with me so rMB 12" will be beautifuly thin and light for that matter and I also prefer the low front lip for long typing stints.
Will for sure wait for some real tests but I truly believe its gonna be fine for what I use. Do you agree?