[mhurron]

> heavier and uglier

I can give you bigger and thicker since I would expect those too. Neither is really a problem though. One of the benefits of the otterbox case for my Galaxy G3 is that it made the phone thicker, and it's already on the big side.

Heavier though will probably depend on the modules you choose, and ugly, well I thought what they were showing looked kind of good.

Personally, a lack of a SD card is one of the reasons I didn't get the Nexus or an iPhone. There are people that want these types of features and they win when comparing with alternatives.

[Tyrannosaurs]

The interesting thing about the mobile phone market is how big it is and what that means for niches.

There are about 900m Android phones out there. That means if you assume only 10% of the market might be interested in a particular variant of phone, your total addressable market is still 90 million (and growing).

My instinct is that this level of customisation is probably a relatively niche thing but - as outlined above - that doesn't mean that there isn't room for it to be commercially successful.

[jan_g]

Yes, there are people whose needs are different. And I am much in favor of modular design (at least replaceable battery, SD card and USB OTG, but project Ara goes much further), but that does not seem to be the case with mainstream consumer.