It wastes your data plan
...you already have unlimited texting?
My unlimited messaging does not cover international SMS. With iMessage, I was able to text my friends in England and Hong Kong at no extra cost to me or them. That's an advantage for us.
If you are not sending pictures/video through Imessage, just text, 7500 text messages = about 1 megabyte. Meaning if you are on the 200 mb plan you would have to send 150000 text messages to use 10 percent of your data.
Not doubting you but would be interested to know where these figures came from as I have been looking for these.
I have wondered what impact iMessage would have on my data plan as I have unlimited texts. If the figures are accurate then there is no real impact.
You can do the math yourself. 1 character is one byte. So if you have a 200MB plan (200,000,000 bytes), then you could send about 1.3 million 160-character text messages. So to even use 10% of the plan, you'd have to send 130,000 text messages. So yeah, no real impact.
...you already have unlimited texting?
can someone explain the read receipts bit ? what's different to a text ? cheers d