I would probably use the same material. You can change the layout or possibly add a border with the same or different materials.

If you have carpet/wood or whatever between the foyer and kitchen and use something different in the foyer than the kitchen, you now have THREE different materials all connected. Too disjointed, in my opinion.

I like the idea of tying it together but doing something different. That could mean a different pattern, different size tiles with the same finish, a border with a different material, etc.

What is on the floors in the other rooms that open to your entryway? The foyer/hall can match one of those rather than the kitchen.

I am having the same dilemma. I finally decided to use the same flooring for the kitchen and entry since you can see them both as you enter the house. I think the uniformity looks nice, but of course it's all personal preference.

Use the same tiles and incorporate a patterned inset/design, using other colors to tie things in.

That custom look as soon as you enter your investment.

We had the same decision and went with a different look for the entry way and are very happy with it. The hardwood we chose for the entry is a nice contrast to the bamboo in the kitchen and makes a distinctive transition between the rooms.

A SnowFlake888 said though, it all boils down to personal preference.