There is no way Amazon is paying $26 for the processor. The DM3725 is a single core Cortex-A8 device with a TI DSP, in a thoroughly mature 45 nm process (probably outsourced to TSMC, to boot), and I'm willing to bet the die size is still smaller than that of the 40 nm BCM2837 with its quad Cortex-A53 CPU complex, GPU, etc.
You can be certain that TI and Amazon have a direct purchase agreement as Amazon is a heavy user of TI mixed signal and power devices in their other products. Heck, anyone selling semiconductors to Amazon is doing so directly, without the need for a distributor (unless Amazon's assembly house uses a distributor for inventory management).
I'm sure TI is doing just fine selling to Amazon, although I suspect the BOM cost for the Dot is still probably such that Amazon is just covering costs with some margin built-in for resellers like Target, Best Buy, etc.
Sobald er das hat, wird er in der Lage sein, eine Grafik zu seiner im Laufe der Zeit erlangten Reputation zu sehen.
Hier ist eine Vorschau, wie die Grafik aussehen wird:
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