i900 verses i910

I have been reading this site and have learned a lot about my i900 I purchased it on e-bay. I have att here in Pa USA. It works great eccept I cant figure out the wifi just yet. It connects to my neighbors  wifi but not mine?? I get an average of 5-7 wifi sites available to me in my house. (most locked by security) but it finds them. Also the GPS  gets 7-9 sat. locks, here inside my house. It has pin point accuracy, I was messing around with it while hunting and it found me very quickly, 1-2 minutes. sats. only, no cell tower fixes.
It seems that a lot of people have purchased i910 and have found this forum looking for "samsung omnia" but it seems verizon took out all the fun features. (why I got an unlocked version) I am not real pc or ppc savy. I just wanted a good phone, good camera, GPS, mp3, and internet. (that card reader is awesome!!) Its all here in the I900.  I followed your advice and raised the volume, downloaded the touch task manager. I can get the $15 data plan instead of the $70 plan since its unlocked and not branded . My i900 seems to have better than average features, like a good alarm. and a few other fixes for complaints I have seen here. I am not sure what build I have??  I forget how to find it.. one thing that ticked me off,  I synced my phone to my pc and it erased all my contacts extra info.. like home phone, e-mail, addresses.. not real sure what happened there?? I do not have outlook? 
SORRY if this is the wrong place and wrong time but thank you to all of you who have posted great advice for the i900.  A great big thank you to all!!
but anyway it seems that a lot of people got a omnia that has a lot missing from verizon?? no real GPS

I have a $75 a month plan with att for 3 phones,mom, my son, and I.  plus $15/mo. for my  phone data plan. if I got the att samsung phone for $180, 2 year contract, with the 70 a month plan. that would be $700 I paid for the phone if purchased from att. Thats with out all the real i900 extras..GPS for one. (oh its $35 mo X 24 mo. = 840 for unlocked, or $70 mo. x 24 mo. = 1680, thats 840 for a lesser omnia if purchased through att) I payed $380 on e-bay for my omnia.
Oh and my lock buttons.. If i lock the  phone from my end call button. It locks ALL the keys, even the volume buttons!! But again thank you to all for the "raise the volume " settings. its great I can now listen while working (I do plumbing work, I keep my phone in my pocket and play my mp3's) I looked at verizon and they have great phones but I am happy with att..and my i900!!