Internet options on Little Gasparilla Island include 4G LTE cell service from Verizon and AT&T, a broadband WISP that serves primarily the bay side, and satellite internet.
With a line of sight to their tower, Suncoast Broadband ( 800-903-8202 ) would be my Little Gasparilla Island broadband Internet option of choice because it has a better pricing model than 4G LTE, low latency, you don't have to closely watch a bandwidth meter like with cellphone internet, and it offers reasonably fast speeds and differnet plans to choose from at good prices.
While on LGI, I tested both Verizon and AT&T 4G LTE using mobile hotpots from each company, and both worked reasonably well. Elevation generally yeilds faster speeds, and in a lower house I did have to move the hotspot around some to get a solid signal. It's good to have coverage from two providers, and nice to be able to check in on things at different points around the Island or when walking north to the Don Pedro State Park. I have summarized some testsat different places on Little Gasparilla Island on this page. I don't know what caused the latency spikes on Verizon; only one Verizon hotspot was available for testing and should be compared with other devices in the future. 4G LTE works well for vacationers since most already have an AT&T or Verizon device which can be used and tethered or used as a mobile hotspot. I have not tested Sprint (which offers lower cost for higher bandwidth packages) or T-mobile on the Island.
Finally there is 2-way satellite, which would usually be my choice of last resort due to the higher latency and contract requirement of satellite (having used satellite from 2001 to 2008, which was good at the time, but not compared to lower latency options today). On a positive note, Exede offers a Freedom Plan for the 33946 area which is quite good as satellite plans go, offering 12 |Mbps down, 3 Mbps up, and 150 GB of data for $99/month. There is also HughesNet. This was a backup option in our LGI rental unit, and worked although the ~1000 ms latency was noticeable compared to 4G.
There is landline telephone service, but no DSL yet over these lines. Palm Island is served by extremely fast comcast cable and Internet, but it's not yet available on LGI. Some people on the Island are working to try and get either cable or dsl to serve LGI for more affordable and easy Internet for those who need or want it; talks were reported by the LGPOA.